Top 5 Causes of a Water Hammer Sound

1. Faulty Appliances and Fasting-Acting Valves

Many modern appliances, such as washing machines and dishwashers, use solenoid valves to control water flow. These valves are electromechanical devices that use electricity to control the flow of liquid in a pipe. They open and close quickly, allowing for precise filling of the appliance.

While precision is necessary, the abrupt closure can cause problems in your plumbing system, mainly when issues already exist. The sudden stoppage of water flowing at high pressure creates a shockwave that reverberates back through the system. Like a fast-moving train slamming on its brakes, the force and momentum must go somewhere.

The shockwave from the valve closure travels backward, colliding with the plumbing system’s bends, fixtures, and pipes. The collisions cause the characteristic banging or knocking water hammer sound. If the pressure is high or strong enough, the force can damage system elements.

The internal components of valves can wear out over time, which can cause them to close faster or less smoothly, exacerbating the water hammer effect. While other faulty parts of appliances can cause the noises, faulty or worn solenoid valves are a common contributor.

2. High Water Pressure

Your household plumbing system is like a well-designed highway network; it’s designed to meet specific traffic volumes. Normal water pressure is like cars moving at a reasonable speed. Abruptly closing a faucet or a fast-acting valve is like putting up a sudden roadblock. Some bumping and jostling is normal, but your pipes can handle it.

High water pressure changes the picture. Imagine a highway packed with speeding vehicles instead of a steady flow of cars. Now, a sudden roadblock in the system, like the closing of a solenoid valve or fixture, causes violent collisions and multi-car pile-ups. In your plumbing, this translates to a shockwave surging backward, knocking into pipes, joints, and other components, causing the water hammer sound.

Your plumbing system has some resilience to shockwaves, but it also has a limit. High water pressure magnifies the force of water hammer. Each “bang” isn’t just an annoyance; it’s a sign of wear and tear happening inside your walls. Over time, water hammer can cause weakened joints, leaks, and even ruptures. Addressing high water pressure is about more than addressing the noise; it’s about protecting your building infrastructure.

3. Loose or Unsecured Pipes

Loose or unsecured pipes can turn your plumbing system into a loud, disruptive, and destructive force. Usually, plumbers securely anchor pipes to walls and framing, restricting movement and allowing for force absorption. However, if your system contains loose or unsecured pipes, it will enable movement. A water hammer event causes those loose pipes to bang and rattle against walls, framing, and other pipes, resulting in the typical water hammer sound.

Unfortunately, the noise is the least of your concerns. When pipes move freely, the force of water hammer strains joints and fittings. Over time, those repeated impacts loosen connections, leading to leaks. In severe cases, the constant movement and repeat shockwaves combined with high pressure can weaken the pipes, threatening a rupture and turning a minor annoyance into a plumbing emergency.

Loose pipes can amplify the water hammer issue by adding their vibration to the shockwave. This combination of factors creates a destructive cycle in which water hammer weakens pipes, and those pipes in turn contribute to stronger future events.

4. Worn-Out Plumbing Components

Worn-out plumbing components are ticking time bombs for water hammer problems. Sticking to maintenance and inspection schedules is crucial to avoid issues and resolve potential problems quickly.

In your plumbing highway system, faucets and valves are like traffic lights or cops. They control the smooth flow of water, limiting the causes of water hammer sound. When wear and tear take their toll on various components, it’s like your system is working with faulty traffic signals and traffic police falling asleep on the job, resulting in sudden stops and starts and numerous collisions.

As with real-world traffic systems, it is crucial to address failing or faulty components in your plumbing. Worn-out components not only exacerbate water hammer noises but can also lead to system and structural damage. Left unchecked, minor wear and tear can cause significant financial and property damage.

5. Trapped Air in Pipes

Air pockets within your plumbing system might seem harmless, but they can significantly contribute to the bothersome water knocking in pipes known as water hammer. Your plumbing system is a closed system, so air shouldn’t end up in the water lines. Unfortunately, air sneaks into your plumbing in many ways, including during repairs or inspections that require draining parts of the system. Small leaks and loose connections can also allow air into the system.

Initially, trapped air can reduce the effects of the water hammer sound, providing a cushion that absorbs some of the shockwave’s force when valves close. The problem is that an air pocket is temporary. As water moves through the system, it pushes the air pocket along, compressing it. Eventually, the air pocket gets displaced and your system loses its cushion, leaving it vulnerable to the full force of the shockwave.

While air pockets can initially protect your system, they don’t belong. They eventually worsen the water hammer effects, can reduce water flow, and accelerate corrosion. A plumber can and should address any air or water hammer issues. Do not attempt DIY repairs or fixes because they can worsen the problem.

Identify and Resolve the Cause of the Water Hammer Sound

How Sanitary Plumbing Can Help

The water hammer sound is more than an annoyance; it’s a sign of potential damage lurking in your building’s plumbing. If you or your tenants notice strange noises that originate in your building’s plumbing system, don’t let it escalate. Contact Sanitary Plumbing at 212-734-5000 to schedule a thorough diagnosis and receive a lasting solution.

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When a sink gurgles but drains fine, it indicates something is amiss. Unusual noises from your plumbing system typically indicate problems. While occasional gurgling, especially after a large amount of water goes down a drain, might be expected, persistent or noticeable noises warrant further investigation.

Top 3 Reasons a Sink Gurgles but Drains Fine

1. Partial Clogs in the Drain Line

New York City offers a beautiful and iconic landscape. The skyline, filled with high-rises and pre-war structures, is part of what makes the city so intriguing. Unfortunately, aging infrastructure plagues many of the city’s properties.

Older apartment buildings with aged plumbing are more likely to accumulate buildups of mineral deposits, rust, soaps, and detergents than newer plumbing. The buildups constrict internal passageways, resulting in pressure imbalances in the drain lines and causing unusual noises.

Also, apartment buildings share drain lines between multiple tenants. The shared system increases the odds of grease buildup or unexpected items in the drain lines. Even when most tenants exhibit good drain practices, a single tenant flushing paper towel or falsely labeled “flushable wipes” can affect the entire system.

A partial clog in one apartment’s line can cause gurgling noises in neighboring units on the same floor because of interconnected drainage. If a partial clog is the culprit of a gurgling sink, it needs repair. Leaving a partial clog allows it to develop, challenging system flows further until a blockage forms.

2. Problems With Vent Pipes

Many properties in NYC are historic or pre-war with shared rooftop venting. Modern building codes favor isolated systems, reducing the risks of clogs and other airflow issues. Still, a sink that gurgles but drains fine may have a clog or problem with the vent stack.

The primary causes of vent pipe problems are external debris, internal buildup, or improper installation. External debris like leaves and twigs significantly threaten rooftop termination vents, which are more exposed to the elements and are more common in older properties.

Internal buildup from grease, lint, or freezing condensation is less common in vents than drains but still possible, especially in shared systems. Grease vapor can accumulate in the vents, cool and solidify, creating partial blockages and pressure changes in the system. The result is noisy drainage. Laundry room vents are susceptible to dust and lint accumulation, which also cause blockages and pressure changes. Dust and lint can also create a significant fire hazard.

Improper vent installations can also cause gurgling in drain lines. A vent pipe that is too long or has too many bends or connections alters the airflow in the system. The change in airflow causes noises and potential drainage issues.

3. Issues With the Main Sewer Line

When a sink gurgles but drains fine, it can also indicate a problem with the main sewer line. NYC’s aging plumbing infrastructure is no secret; with age comes a greater risk of root infiltration, cracks, and collapses. Additionally, the combined storm and sanitary sewer systems of several neighborhoods increase the risks of backups and other unpleasant side effects, like gurgling.

Even if you exclude the potential for issues affecting the city sewer system, an apartment building, with its multiple tenants and staff, multiplies the risks affecting the property’s main sewer line. A single tenant flushing something they shouldn’t is an annoyance, but in a large apartment building, the chances of improper disposal are higher, turning a minor annoyance into a significant threat to the building’s infrastructure.

Property owners cannot eliminate all risks, but they can reduce them by using and offering clear and accessible information. Every tenant should receive a notice of proper drain usage, with a clear breakdown of items that can and cannot be flushed or washed down drains. Post notices in all public and community areas, including restrooms, laundry rooms, and kitchens.

Notices can help reduce main line and local line risks, but regular maintenance and inspections are the best defense against problems. If a sink gurgles but drains fine, contact Sanitary Plumbing to investigate before something catastrophic occurs.

Why Sink Gurgling Matters

Plumbing Pressures Out of Balance

Ideally, drain and vent pipes work together to permit a smooth water flow out of the system. As the water moves down the drain, it pulls air behind it, creating a vacuum and encouraging continued flow. Vent pipes throughout the system allow more air to enter, maintaining the necessary negative pressure.

Gurgling occurs when something disrupts the pressure, throwing the system out of balance. For example, when a clog occurs in a drain or vent, even a partial clog, it permits air to get trapped in the pipes. Water rushing past the clog struggles to push the trapped air out, causing bubbles and that gurgling sound.

The resulting pressure imbalance is more than a nuisance. Over time, the issue can worsen, leading to slower drainage as air competes with water for space. The negative pressure can also cause sewer gases that normally vent to the roof to be sucked back through drain openings and into the property. The gases are unpleasant and potentially hazardous.

Why You Should Call Sanitary Plumbing When a Sink Gurgles but Drains Fine

Immediate Assistance and Annual Service Contracts

When a sink gurgles but drains fine, it might indicate an internal problem in the building’s plumbing. Typically, a persistent gurgling noise signals a pressure imbalance in the drain pipes, which can lead to drainage disruptions in the future. A pressure change can also cause a backflow of hazardous fumes into units or community spaces. Just because a sink drains fine doesn’t mean everything is OK throughout the system. System maintenance and routine inspections are the only ways to ensure a balanced system and reduce risks. Contact Sanitary Plumbing at 212-734-5000 for immediate assistance and to schedule maintenance. Also, ask about our annual service contracts for regular inspections and routine repairs.

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Uncovering the Cause of a High Water Bill With No Visible Leak

Data Gathering

Not all water bill increases warrant concern. Some increases relate to seasonal changes, like outdoor watering in spring and summer. However, a sustained usage increase is reason enough for further investigation. According to the EPA (Environmental Protection Agency), an average household leak can waste almost 10,000 gallons annually, resulting in a potential 10% increase in water bills.

If your water bill is higher than usual, you should request historical usage data from the New York City Department of Environmental Protection (DEP). The DEP holds onto historical data, allowing property owners to assess trends, potentially revealing a leak that has gradually worsened.

When water usage is consistently higher than in previous years, it may be a sign of a hidden pipe break or leak, depending on the severity. It would be best to account for building occupancy rates in the historical data. Still, water usage can point to a possible problem that requires further investigation.

Hidden Leak Checks

With a high water bill with no visible leaks, hidden leaks are possible. These leaks occur inside walls, under floors, within appliances, and underground. They’re especially problematic because they often go unnoticed for extended periods, resulting in property damage and potential health hazards, like respiratory issues from mold or mildew exposure.

If tenants are amiable to the idea, run a shut-off test to identify a hidden leak and its potential location. Set a time to turn off all taps and water-using appliances. During the test, look at the main water meter. Is it still rising? If so, it may point to a leak.

The shut-off test is easier if each unit has its own meter because then you can run individual tests, which are more controllable and reliable. The process can help pinpoint the affected units to narrow down the area of the building with the leak.

If you don’t want to perform a shut-off test, look for signs of hidden leaks throughout the property, such as dampness, pools of standing water, warped flooring, staining, white mineral deposits on pipes, or mold and mildew. Listen for hissing, dripping, or rushing sounds within walls, ceilings, and floors.

Professional Inspection

If shut-off tests and visual inspections don’t provide answers for a high water bill with no visible leaks, it is likely time for a professional inspection. Licensed NYC plumbers have specialized tools for hidden leak detection, from acoustic listening devices that amplify water leaks and pinpoint areas of concern to thermal cameras that detect temperature differences and reveal moisture patterns.

Sanitary Plumbing can also use pressure tests and tracer gas to identify the precise leak locations. Pressure tests isolate pipe sections, helping narrow down where the leak occurs. Tracer gas techniques use non-toxic gases to pinpoint the exact location of a leak.

Multiple leaks are likely, depending on the age of the building and the severity of the water usage increase. Older buildings, which make up most of NYC’s cityscape, tend to have infrastructure issues. The rise in water bills might only be the first signal of an ongoing problem.

Faulty Water Meter or Billing Errors

Sometimes, a high water bill with no visible leak points to other issues, like a faulty water meter or billing errors. While water meters are built to last, they contain moving parts that can wear down over time, possibly causing inaccurate readings. Also, meters are potentially susceptible to debris or mineral buildup, which may obstruct the mechanics and lead to misreadings. Contact the NYC DEP to schedule a meter assessment if you suspect a faulty meter.

A higher water bill can also stem from estimated readings or human error. If a meter reader cannot access a meter, the water company may estimate water usage based on historical readings, which can be inaccurate. While infrequent, especially in the digital age, human error is possible. Meter readers may make mistakes with data entry or misread the meters, resulting in incorrect bills.

If you suspect a billing or meter error is causing your higher bill, contacting the DEP to test the meter before requesting an inspection of your plumbing system is best. Replacing a faulty meter will not likely cost you anything unless damage results from intentional damage, but hiring a plumber will. Still, a plumber might be the fastest way of determining the cause of a high water bill with no visible leak.

Preventing Future Issues With Hidden Leaks and Billing Costs

Regular Inspections, Proactive Leak Detection, and Water-Efficient Upgrades

To prevent unpleasant surprises from hidden leaks, schedule regular professional inspections and maintenance for building-wide water systems, common areas, and outdoor water use zones. Inspections should focus on identifying tell-tale signs of small leaks, worn or failing plumbing components, and potential problem areas.

In older buildings, periodic leak surveys by licensed plumbers specializing in leak detection are a proactive investment. Using advanced technology, these professionals can identify the precise location of hidden leaks without invasive procedures.

As a building owner, consider water-efficient upgrades to reduce utility bills. Low-flow toilets, showerheads, and faucet aerators reduce water bills and support the city’s sustainability efforts.

Beyond infrastructure upgrades, engage your tenants by providing guides on leak detection and prompt reporting. The apartment community depends on a collaborative approach to catch issues early, save money, and conserve valuable water resources.

Choosing Annual Service Contracts To Guard Against High Water Bills With No Visible Leaks

Routine Maintenance and Inspections With Sanitary Plumbing

A high water bill with no visible leak can be frustrating. Sanitary Plumbing can help. With our annual service contract, we can locate your hidden leak and reduce the risk of future damage. By signing the agreement, you no longer have to worry about scheduling routine maintenance and inspections because we’ll remember for you. Contact our team at 212-734-5000 to discuss our annual service agreements and schedule an inspection.

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The Invention of the Dishwasher: Early Iterations to Modern Marvel

Joel Houghton’s Hand-Cranked Device

In 1850, Joel Houghton, an inventor, secured the first U.S. patent for a device specifically designed for dishwashing. The invention provided the foundational work for what would eventually inspire the creation of the modern dishwasher, and it represents the earliest recorded attempt to mechanize a tedious household task.

Houghton’s design used a hand-cranked mechanism in a wooden box. The crank turned a wheel that splashed water on dirty dishes. It also had scrubbers for dislodging food residue. While applicable, the design didn’t ease the task of washing dishes. Houghton’s device relied on manual power, and users considered it labor-intensive.

While his design stemmed from a positive place — witnessing the struggles of servants in larger households — it was impractical and failed to reduce the time and effort put into domestic chores. Still, Houghton’s efforts were not in vain because they inspired several future inventors, eventually leading to the invention of the dishwasher.

L.A. Alexander’s Geared Improvement

L.A. Alexander, an inventor in the 1860s, holds an 1865 U.S. patent for an improved dishwasher design. While his work highlights a crucial step in the evolution of the dishwasher design, the inventor himself remains somewhat of an enigma. Still, a close reading of his patent offers insight into the design improvements over Houghton’s hand-cranked option.

Alexander introduced a gear system that aimed to automate the rotation of dishes within a washing container and compensate for some of the inefficiencies of Houghton’s earlier design. With the gear system, Alexander hoped the design would reduce manual labor and increase the force of the water spray.

Unfortunately, while a minor improvement over Houghton’s design, Alexander’s dishwasher still lacked the practicality to achieve widespread success. In the 1860s, mechanical devices for the home were still somewhat uncommon and viewed with skepticism. Beyond public apprehension, Alexander’s gear design was somewhat complex, creating cost barriers that made the design inaccessible to most households.

Josephine Cochrane’s Determination

The invention of the dishwasher belongs to Josephine Cochrane, a wealthy socialite with a family background in engineering. While she was not the first to envision it, her design broke new ground and led to the first commercially successful dishwasher.

Unlike Houghton, Cochrane wanted to do more than simply reduce menial labor. As a socialite, she frequently hosted dinner parties where she insisted on using fine china. Unfortunately, the dinnerware became chipped during cleaning, sparking frustration and motivating her to find a better way to do the dishes.

Unlike earlier iterations, Cochrane’s design, patented on December 28, 1886, used a boiler and pump to create hot, soapy water jets, making it the first design to use water pressure. She used built-in compartments to prevent breakage and ensure complete coverage of the dishes during the washing cycle.

Unlike Houghton and Alexander, Cochrane actively sought commercial success. She formed her own company and promoted her invention at the 1893 Word’s Fair. Even after the fair, she persistently marketed to hotels and restaurants. Cochrane continued to tweak her design and received a second posthumous patent in 1917.

William Howard Livens’ More Practical Design

In the quest to determine who invented the dishwasher, Josephine Cochrane receives credit for the first commercially viable dishwasher. Still, William Howard Livens, a British engineer and WWI military inventor, brought the concept closer to household adoption.

The invention of the dishwasher evolved during the 1920s with the rise of consumerism and the growing demand for time-saving domestic appliances. Livens had a successful engineering background and acquired a patent in 1924 for his dishwasher design, which was significantly smaller than Cochrane’s and intended for domestic use.

Livens’ design used front-loading to improve accessibility and wire racks to secure dishes, likely inspired by Cochrane’s designs. The rotating sprayer that ensured a more thorough cleaning was a significant improvement to the dishwasher design.

Livens’ dishwasher was still expensive; however, because of the smaller size and more effective design, his design was more attainable and practical for middle-class families. The changes in the design were necessary for eventual widespread adoption.

The Modern Dishwasher: A Kitchen Necessity

Energy Efficiency and Design Variation

Following World War II, rising affluence gave rise to domestic conveniences and appliance adoptions. Technological and manufacturing improvements reduced the costs of dishwashers, allowing more people to take advantage of the convenience.

Into the 1970s and beyond, the U.S. and other countries began pushing energy efficiency mandates, improving the invention of the dishwasher with water distribution and heating features in appliances. Companies also began toying with design variations, like portable, countertops, and built-in dishwashers, to suit the diverse needs of the marketplace.

Maintenance and Best Practices

While the dishwasher helps reduce manual and menial labor, it still requires maintenance and care. At least once per month, you should perform routine maintenance:

• Clean the filter
• Wipe down the interior
• Inspect the spray arms
• Run an empty cycle with a cup of white vinegar

To get the most out of your dishwasher, you must prepare the dishes and load the appliance correctly. Although modern dishwashers can handle some food residue, you still need to scrape large food chunks into the trash — don’t use the sink unless you have a garbage disposal — before putting the dishes in the appliance. Don’t overpack the dishwasher; leave a little space between dishes to allow water to get through.

Beyond the Invention of the Dishwasher: Maintaining Modern Devices

How Sanitary Plumbing Can Help With Your Plumbing Appliances

Since the invention of the dishwasher, many changes have all aimed at improving the device for modern convenience. Despite the improvements in efficiency and affordability, dishwashers are still mechanical appliances that require professional cleaning and regular maintenance. Call Sanitary Plumbing at (212) 734-5000 to learn more about maintenance schedules and to request a property inspection.

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Reduced pressure zone valves are backflow prevention devices and require annual testing by a certified tester. The valves are integral to multi-unit residential properties and mixed-use buildings. Annual RPZ testing is a legal requirement in NYC, and failure to comply with testing guidelines may result in a violation notice and a $500 fine for each untested device.

What’s RPZ Testing and Why NYC Building Owners Must Care?

Understanding the Importance of RPZ Tests

A backflow preventer, such as an RPZ, is a complex valve designed to prevent contaminated water from flowing backward into your building’s clean water supply. The device creates a reduced pressure zone between two check valves. When the pressure drops inside the building’s plumbing system, wastewater can push back toward the system. The valve opens and dumps the wastewater out of the system entirely, eliminating the risk of contamination.

While RPZ tests are a legal requirement, they are also important to the health of your property’s plumbing system and the municipal water supply. NYC enforces backflow prevention regulations because of the city’s infrastructure’s interconnectedness and the potential risks to people’s health, including those who are not your current tenants.

The city and state are not the only municipalities in the country that require RPZ testing. Many states, including California, Illinois, Michigan, Minnesota, Texas, and Washington State, require annual testing and verification by certified professionals.

Acknowledging Cross-Contamination Risks

Being concerned about your building and its plumbing infrastructure is natural, but you must acknowledge that your system doesn’t exist in isolation. NYC’s underlying water supply network is complex and interconnected, with each part influencing the next. Your building connects to and uses that infrastructure.

The municipal system means that you, your neighbor, and your entire street and beyond share sewers and supplies. A pressure drop, leak, or even repair in a neighboring structure or city line can create pressure shifts that affect your property, placing it under threat of backflow challenges. RPZ valves act as safeguards, preventing wastewater from traveling through the interconnected network and into your property’s system.

Therefore, because of the expansive cross-contamination risks, NYC requires annual RPZ testing in buildings, including multi-unit residential properties required by law to have backflow valves. The tests and requirements enforce citywide responsibility and ensure that each building owner is responsible for their piece in the interconnected system.

Learning About Backflow Prevention Regulations

The New York City Department of Environmental Protection is responsible for setting and enforcing backflow prevention regulations, which are necessary to protect the health and safety of the city’s residents. The DEP’s Cross-Connection Control Program Handbook is a good resource for property owners interested in more information about the city’s cross-connection control programs.

Building owners must understand the key regulations, which include mandatory installation and annual testing requirements. Large residential and commercial properties typically require RPZs. Annual testing is necessary to ensure the backflow preventers work correctly, protecting your building and its tenants.

If you do not comply with citywide regulations, you risk financial and legal penalties. Beyond the standard $500 fine per untested device, neglecting your legal duties as a landlord can result in legal consequences and further financial trouble. Landlords have a legal and ethical responsibility to provide a safe living environment.

Why Spring Testing?

Boiler Shutdown and Pressure Irregularities

Spring is an excellent time for RPZ testing because you are likely getting ready to shut down your boiler and start up various other systems, including irrigation systems. Shutting down plumbing systems and starting others can create pressure irregularities, which may risk backflows. Backflow is also a potential issue when damage occurs to specific summer systems during the cold winter months.

By testing your valves in March or April, you kill two birds with one stone. You meet the annual testing requirement and eliminate the potential risks of cross-contamination when powering systems on or off. Also, early system testing can ensure that all your systems are ready for the late spring and summer months, when they are more likely to be used.

What Can You Expect During an RPZ Test?

Testing Process

An RPZ test involves visual inspection, repairs, and functional testing. During the visual inspection, the licensed and certified tester looks for signs of damage, leaks, or improper installation. If the inspector notices any damage, they will likely make any necessary repairs before moving on to functional testing.

Functional testing involves using specialized gauges to measure the pressure on both sides of the RPZ device and around internal components. The readings help the inspector determine whether the check and relief valves are working correctly.

RPZ testing can cause brief water service disruptions, so informing tenants and staff before the test is necessary to reduce inconvenience. Typically, the entire process takes 30-60 minutes, depending on the complexity of the system, the assembly’s condition, and any required repairs. It is best to give tenants a broad window to ensure they can prepare.

In general, you must briefly turn off the water supply to the backflow preventer, but it will cause little to no interference to the overall water supply. Still, it is best to prepare tenants and staff for a worst-case scenario rather than deal with a flood of complaints if you disrupt the supply because of repairs or other issues.

How Can Sanitary Plumbing Help With RPZ Testing?

Annual Inspections and Service Contracts

RPZ testing is a legal requirement in NYC and a qualified professional must perform it. Sanitary Plumbing has certification for such tests and inspections. We also offer annual service contracts to ensure you never forget about regulatory compliance testing for your entire plumbing system. If you want to schedule an RPZ test or discuss our annual service contracts, contact our team at 212-734-5000.

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How do fire sprinklers work to prevent damage? Are the devices really necessary for reducing fire loss? Besides being a legal requirement in properties, fire sprinklers benefit property owners in multiple ways. It is worthwhile for a property owner to understand how these elements work and why they are so valuable.

How Fire Sprinklers Work: A Simple Process

1. Heat Triggers the Sprinkler Head

Each sprinkler head reacts to heat directly above the individual unit. Every head has a temperature threshold that prevents unnecessary activation or premature water delivery. The typical activation temperature is 135 to 170 degrees Fahrenheit, which is significantly higher than average daily temperatures.

The triggering mechanism depends on your fire suppression system. A sprinkler head can have a glass bulb or a fusible link as a trigger point. The glass bulb heads are more common and offer more aesthetic appeal. They use a small, sealed glass vial containing a glycerin-based liquid that expands rapidly when heated. Expansion of the liquid causes the glass vial to shatter, eliminating the barrier holding back the water.

The less common fusible link sprinkler heads have a more industrial look with limited finish options. These devices rely on a metal alloy link. The alloy melts at a specific temperature range, breaking the link and releasing the plug, freeing the water outlet.

2. Water Valve Opens for Distribution

The melting or shattering of the heat-sensitive element creates the simultaneous release of pressurized water. The water valve, previously held closed by the sprinkler head’s seal, opens fully and immediately.

Meticulous engineering is how fire sprinklers work. The design ensures a specific flow rate at a given sustainable pressure. Directly beneath the sprinkler head is a deflector that ensures water disperses over the area, targeting the fire source and its surroundings.

The strong water pressure combined with the deflector allows for adequate fuel saturation, soaking potential fuel sources — furniture, carpet, drapes, etc. — and making them harder to ignite. The spray also cools the immediate area, lessening the risk of heat-related structural damage.

Finally, the opening of the water valve and its immediate and forceful disruption can reduce the fire and limit its spread. The pressure from the sprinkler heads in fire-affected areas knocks down flames and disrupts combustion.

3. Supply and The Piping System

A fire suppression system uses a series of pipes directly connected to municipal water lines or dedicated water tanks to ensure an adequate water supply. Some systems may require fire pumps to ensure proper pressure throughout the lines.

Contributing to how fire sprinklers work, your building likely has three types of control valves: main riser, zone control, and inspector test valves. The main riser valve controls the entire water supply to the system. Zone control valves divide the system into sections, allowing for targeted water flow. Finally, the inspector test valve provides an access point for the inspector to test water flow and monitor specific sections of the system.

Beyond the valves, you have the pipes themselves. Historically, fire suppression pipes were steel, but now it is more common to find other materials, like CPVC. The sizing of the pipes matters because it plays directly into flow and pressure measurements, ensuring proper and ongoing fire suppression support.

Pervasive Myths About Fire How Fire Sprinklers Work

1. All Sprinklers Activate at Once

Many property owners worry about the damage risks associated with fire sprinklers, especially with the persistent myth that all fire sprinklers activate simultaneously. In a typical system, only the sprinkler heads directly exposed to the heat of the fire activate. Therefore, a standard fire suppression system restricts any potential damage to only fire and extreme heat-affected areas of the building.

Hollywood is the primary culprit of this myth, often depicting entire sprinkler systems going off simultaneously. The misrepresentation creates a false impression in the public mindset, making property owners reluctant, though legally obligated, to install and maintain the systems.

While most systems do not allow a simultaneous release throughout the system, the deluge system is a unique exception. Deluge fire suppression systems simultaneously release water or chemicals from all sprinkler heads, but these systems rarely appear in apartments and most commercial buildings. The systems are more common in high-hazard environments.

2. Smoke Triggers Fire Sprinklers

People often conflate or associate fire alarms with fire sprinklers. Fire or smoke alarms respond to smoke in the building, but that is not how fire sprinklers work. Fire sprinklers are purely heat-activated devices; smoke does not trigger any reaction. The sprinkler heads use heat-sensitive elements that melt or shatter when temperatures reach a specific temperature, opening the valve and applying water to the heat source or fire.

Sprinklers will not discharge water for factors like steam, cooking smoke, or other airborne particles. The fact the devices only react to excess heat is why they are reliable indicators of a fire’s location and how they reduce the risk of unwanted water damage to the property.

3. Sprinklers Cause More Damage Than a Fire

The myth that fire sprinklers cause more damage than a fire likely stems from the previous myths that all sprinklers activate simultaneously and smoke can trigger a water response. The real, rapid, and isolated response of fire sprinklers helps reduce fire, water, and smoke damage to property. Because suppression systems target fires, they usually tamp down or put them out in the early stages, reducing the need for water-heavy rescues from emergency responders.

How Fire Sprinklers Work: The Life-Saving Process

Fire sprinklers work by using an engineered approach to target only fire and heat-affected areas of your building, dousing flames and cooling materials and structures. However, the system only works when maintenance and inspections follow predictable patterns and routines. On average, your fire suppression system requires an annual inspection. Contact Sanitary Plumbing to learn more about inspection requirements and ask about our annual service contracts.

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7 Reasons for Your Toilet Running Intermittently

1. Faulty Flapper

The flapper is the rubber seal or device at the bottom of your tank that covers the flush valve opening. The flapper chain connects the flapper to the toilet handle, so when the handle gets pressed, the chain lifts the flapper from the valve, forcing water to empty from the tank to the bowl. After the flush, when the tank empties, the flapper settles back over the flush valve, creating a watertight seal and allowing the tank to refill.

If a toilet randomly runs, the likely issue is a faulty or warn flapper. Long-term use can wear down the rubber or cause warping. Also, mineral deposits can build up around the edge of the flapper, forcing it to sit askew over the flush valve. Any of these issues can allow a small gap around the seal, permitting the tank to empty slowly, resulting in a toilet running intermittently.

2. Incorrect Float Setting

The float is a device inside the toilet tank that senses the water level and connects to the fill valve or refill mechanism. Typically, the float is ball-shaped, but some toilets have cylindrical cup designs. As the water level in the tank drops, the float lowers, triggering the fill valve to replenish the tank.

High float settings may allow water to continue filling the tank past the top of the overflow tube, meaning the float valve never engages the shutoff for the fill valve. This is a silent leak because water goes directly down the drain, continuously triggering the refill cycle.

3. Misaligned or Tangled Flapper Chain

The flapper chain extends from the flush handle’s lever arm to the rubber flapper. Pressing the handle should pull the chain taunt, lifting the flapper and beginning the flushing cycle. In an ideal operation, when the tank empties, the lever arm, flapper chain, and flapper should return to their original positions.

That said, a flapper chain can be too short or too long. If it is too short, the chain may interfere with the flapper seal over the flush valve, allowing a slow leak into the bowl, resulting in a toilet running intermittently. If the chain is too long, it can bunch up, tangle, or get caught under the flapper, again, resulting in a slow leak.

4. Fill Valve Problems

The fill valve is the device or mechanism that controls how water refills the tank after a flush. The mechanism usually comprises a vertical assembly with a float, a connector from the water supply line, and a refill tube that directs water to the overflow tube.

There are several reasons a fill valve may cause intermittent running water. Hard water or sediment can cause clogs within the fill valve, impeding its ability to seal off the water supply and leading to overfilling. Worn seals or damage to moving parts can affect the water control mechanisms, leading to leaking and overfilling. Also, incorrect refill volume or float height adjustments can cause too much or too little water in the tank.

5. Worn or Damaged Flush Seal

The flush valve is the large opening at the base of the toilet tank that allows water to flow into the bowl when the flapper lifts, breaking the seal. The flush valve seal is a large rubber gasket around the opening. With the flapper, this seal creates a watertight seal when the toilet is at rest.

A toilet running intermittently could mean deterioration or damage to the flush seal. Damage can occur because of poor water quality, mineral deposits, or age. Typically, a seal should last five to seven years, depending on usage and water quality.

6. Cracks in the Tank or Bowl

Thankfully, cracks in toilet tanks and bowls are relatively uncommon. Porcelain toilets are solid and designed to handle excessive weight and pressure from regular use. Still, impact damage, manufacturer defects, extreme temperature shifts, and incorrect installation can lead to hairline cracks or fractures. Even hairline cracks can cause enough of a leak to cause intermittent running.

If you find a crack in a toilet on your property, it is best to replace it. While some repair options exist, the fixes are usually not permanent and offer no guarantees. Sanitary Plumbing can help you assess the damage and determine the best course of action.

7. Water Supply Line Issues

The supply line is the flexible hose that connects to the water shutoff valve from the wall to the underside of your toilet. There are several issues with the supply line that can cause intermittent running water. Leaks in the line can prevent the fill line from shutting off. Thankfully, most leaks are easy to spot because you may see puddles under the line or near the toilet’s base. The problem is that some leaks occur inside the wall, making access challenging.

Kinks and blockages can restrict water flow to the toilet. Twists, bends, or clogs can affect how quickly the tank fills or prohibit filling altogether.

A faulty shutoff valve can mimic water supply line issues. This problem is obvious when you close the valve, but the intermittent running continues.

How Sanitary Plumbing Can Help With a Toilet Running Intermittently

Licensed Plumbers Are Always Available

Does your building have a toilet running intermittently? Have you ruled out any likely culprits? Sanitary Plumbing is always available to help you solve your plumbing mysteries. Call us at 212-734-5000 to schedule an inspection or inquire about the benefits of regular maintenance.

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To correct a sewer gas smell in a bathroom, you must find the source, of which there are several possibilities. Because different causes require a targeted solution, professional inspections are paramount to the repair process. Discover the potential causes of sewer gas smells in bathrooms.

5 Top Causes of Sewer Gas Smell in the Bathroom

1. Dry P-Trap

A P-trap is a drainpipe with a U-shaped bend, named after its shape, which resembles the flipped letter. The P shape traps water to prevent sewer gas from entering the space.

A bathroom has several p-traps, typically under the sink, shower, and bathtub. If any of these traps dry out, smelly sewer gases may emanate from the sink, shower, or bathtub drain.

The trap should not dry out as long as it sees regular use, but in an apartment complex, especially with vacant units, this is a likely cause of a sewer gas smell in the bathroom. The problem arises from the slow process of evaporation in the line. Typically, a P-trap can take a month or longer to dry out fully, but it can happen more quickly in the winter.

You can avoid a dry P-trap by running the sink or shower in vacant units once weekly for a few minutes. If this doesn’t resolve the problem, call Sanitary Plumbing and schedule an inspection. A crack in the P-trap or poor connection and seal may be causing the trap to drain or dry out.

2. Clogged Drains

Clogged drains can cause or encourage sewer gas smells in the bathroom by impeding drainage and ventilation. Bathroom drains are especially susceptible to clogs and blockages because of accumulated debris, like hair or soap scum buildup. The blockages can occur near ventilation routes, forcing gases back up or toward bathroom drains.

The solution for a clogged drain depends on the material causing the blockage. A plumber might use a plunger, drain auger, or enzymatic cleaner. Because of the dangers involved in mixing bathroom cleaners and chemicals, it is best to leave tough clog removal to the professionals.

3. Broken Pipes

Sewer lines may break or sustain damage because of age, corrosion, or ground movement. The cracks can lead to a sewer gas smell in a bathroom because the openings allow gas to escape the line. Damaged pipes often result in an unrelenting odor.

Because these lines deal with waste and sewage, always call professionals for the repairs. Licensed plumbers are necessary to ensure repairs are correct and meet NYC building code requirements. Sanitary Plumbing’s team understands the laws, regulations, and safety protocols for dealing with sewer line repairs.

4. Vent Pipe Issues

Your property’s sewer gas ventilation system is a network of pipes leading from waste pipes to the primary vent stack or plumbing vent to the outside, typically venting on the roof. The purpose of the system is to create a channel for sewer gases to flow naturally out of the building.

Sometimes, an interruption, blockage, clog, or other damage restricts the pathway out of the building, causing a sewer gas smell in a bathroom. A clog in the vent pipe may cause other symptoms, such as slow-moving water in the drains or gurgling sounds in the toilet.

5. Rare Culprits

Other less common causes of sewer gas smells in bathrooms include leaking wax rings, broken toilets, or sewer main issues. A damaged wax ring is rarely the culprit because the rings can last 20 or 30 years, equal to the typical life of a toilet.

While a broken or cracked toilet can cause sewer smells, it is difficult to break or damage these fixtures. A typical toilet has a weight capacity of 500-800 lbs.; they are robust and designed to last.

Finally, if a city sewer main collapses, deforms, or deteriorates, it can force sewer gases back up through drains in the building. Fortunately, collapses are rare.

Professional Inspection and Diagnosis

Understanding the Potential Risks

Toxic and nontoxic gases combine to create sewer gas, a mixture of hydrogen sulfide, ammonia, methane, carbon monoxide, sulfur dioxide, and nitrogen oxide. The characteristic rotten-egg stench is the product of the decomposition of organic waste in sewage systems, along with solvent odors. Many people don’t dispose of cleaning supplies and chemicals correctly, leading to the wafting concoction.

A sewer gas smell in a bathroom can be hazardous. Low levels of sewer gas can cause coughing fits, dizziness, and eye irritation. Moderate to high levels of exposure can cause headaches, loss of consciousness, and death.

In addition, sewer gas presents a fire and explosion risk. A concentration of methane in a small space, like a bathroom, can lead to an explosion through an inadvertent spark or lit match.

Taking Prompt Action and Preventing Future Problems

You can limit the risk of sewer gas hazards by contacting a licensed plumber at the first whiff. The presence of noxious gas calls for emergency plumbing.

Sanitary Plumbing provides emergency services and annual service contracts. Our service agreements include inspections and maintenance.

Annual Service Contracts To Prevent a Sewer Gas Smell in the Bathroom

Hire Sanitary Plumbing for Your Maintenance and Repair Needs

The smell of sewage in your building may stem from several problems. Fortunately, you can avoid ever dealing with the smell with proper and timely maintenance and inspections.

Sanitary Plumbing, a trusted New York City institution, can help. With an annual service contract, you ensure your system receives the upkeep and care it needs to avoid both common and complex problems. Call us at 212-734-5000 to discuss service contracts or schedule an inspection of your system to determine the cause of a sewer gas smell in a bathroom in your building.

The post Possible Causes of Sewer Gas Smell in Bathrooms appeared first on Sanitary Plumbing.

Examining the History of Water Filtration in Ancient Civilizations

Egypt

One of the first cultures to focus on water purification was the Egyptians. In fact, on the tomb walls of Amenophis II and Ramses II, the Egyptians created an instruction manual for purifying water. While the methods were simple, they were pretty impressive for the time.

The simplest method for sanitizing water was to boil the water. The Egyptians would either boil the water in pots or submerge heated iron into the water. They would sift the water through sand and gravel or use porous clay jars to eliminate impurities. Egyptians may have also used charcoal as a rudimentary form of filtration.

Finally, Egyptians used coagulation — a chemical treatment process — to purify water. They used the chemical alum, which separates impurities when added to water, making them easy to remove.

India

Like in ancient Egypt, India used heat and sunlight to sanitize drinking water. They used copper pots to heat the water faster and for the metal’s purification and antimicrobial properties. Also, they stored water in earthenware for natural cooling and purification.

For filtration, the ancient civilization used cloth bags with charcoal. They are among the first societies to use charcoal as a routine filtration device. In fact, archeologists found evidence of charcoal filtration dating back to India in 2000 B.C.

Mesopotamia

Ancient Mesopotamia made significant advancements in the history of water filtration. While the society used methods popular in Egypt and India, like boiling for purification and charcoal filtration, Mesopotamia also created underground aqueducts and cisterns for water storage and filtration.

Mesopotamian societies used cisterns to collect rainwater. The devices supplied water to citadels and have been around since the Neolithic period, about 12,000 years ago.

Aqueducts are systems of canals, ditches, pipes, and tunnels used to move water. The Babylonians established sophisticated canal systems in the 8th century B.C. In the 7th century B.C., they built a canal to bring water to Nineveh, which had to cross a 280-meter bridge.

Greece and Rome

As relatively advanced civilizations, Greece and Rome produced influential thinkers and inventors. Both cultures praised and valued education, encouraging free thinking and invention. Because of the structure of the society, it made several advancements in water filtration, sanitation, and hygiene.

Ancient Greece and Rome influenced the history of water filtration and sanitation with their ingenuity. The societies built springs, aqueducts, public fountains, and bathhouses. They also promoted the use of sand and charcoal filtration in domestic settings.

Exploring Technological Advancements in Water Filtration and Sanitation

The Industrial Revolution

The Industrial Revolution saw significant strides in water filtration and sanitation technologies and processes. In 1804, Scottish Engineer John Gibb invented large-scale sand filtration to provide clean water for his plant. Later in the same century, Robert Thom found a way to use simple wool, sponge, and charcoal filters for municipal applications; he had to alter and improve the design, upping the scale. In the 1890s, they began constructing large sand filters to ensure public health.

During the Industrial Revolution, countries began adopting large-scale public sanitation systems. Countries developed and constructed massive sewer systems to separate wastewater from clean water. The focus on sanitation radically improved public health and living conditions in cities.

20th and 21st Centuries

Through the 20th and 21st centuries, developed nations continued to advance the history of water filtration with techniques and tools like coagulation and flocculation, activated carbon filtration, reverse osmosis, and ultraviolet irradiation. Coagulation and flocculation are techniques that help treat and remove suspended solids in water. The processes combined to speed up the time it takes for particles to settle, allowing for more rapid and thorough filtration.

Active carbon filtration uses active carbon to reduce chlorine and other contaminants in tap water or drinking water. Besides chlorine, active carbon filters may remove:

• – Fluorine
• – Radon
• – Hydrogen sulfide
• – Micropollutants
• – Unwanted odors and tastes

Reverse osmosis is a water treatment process that uses pressure in combination with a semipermeable membrane to filter out contaminants from water. The technique’s pressure compels water molecules to pass through the membrane, eliminating or decreasing the levels of almost all contaminants. Unfortunately, because the filtration method is so effective, it can also remove solids, including minerals like calcium and magnesium, which are beneficial.

Finally, ultraviolet irradiation is one of the safest methods for treating drinking water. The technique doesn’t leave any residue from treatment, leaving valuable minerals or nutrients intact. Primarily, UV filtration is a type of electromagnetic radiation that operates at a germicidal wavelength, disrupting the DNA in microorganisms and preventing them from reproducing. The light kills bacteria, viruses, and protozoa but doesn’t remove them. The effectiveness of UV filtration depends on several factors:

• – Exposure time
• – Lamp intensity
• – Water quality

Understanding Continued Challenges of Water Filtration in the World

Persistent Problems in Developing and Developed Nations

Although significant advancements have occurred throughout the history of water filtration and sanitation, many countries still struggle with access to clean drinking water. According to the United Nations World Water Report, around 2 billion people worldwide cannot access clean and safe drinking water. Beyond that, 3.6 billion people, roughly 46% of the world’s population, lack necessary sanitation services.

The problem affects developing and developed nations, including the U.S. Over 2 million Americans lack access to clean drinking water. Additionally ,over 46 million people in the country live with water insecurity.

Moving Beyond the History of Water Filtration

Install Whole-Building Filtration Systems

The history of water filtration is fascinating because of human ingenuity. It is also heart-wrenching because, despite all the advancements, too many people still lack access to clean water. While the issue is concerning and sad, you can ensure that your tenants never experience life without clean water or working facilities. Call Sanitary Plumbing at 212-734-5000 to discuss whole-building water filtration or to schedule a plumbing inspection or repair.

The post Different Methods of Water Filtration and Sanitation Used Throughout History appeared first on Sanitary Plumbing.

The History of Bathrooms Through the Centuries

16th Century

Before the 16th century in Europe, public bathhouses or washhouses were common, but that changed during the second plague pandemic in the 1500s. People did not want to share spaces with potentially infected people, so society moved toward private home tubs.

Private bathtubs were a bit of a luxury despite their primitive design. A bathtub was a freestanding wooden basin that sat next to a fireplace for added warmth. Taps and interior plumbing did not exist, so bathers boiled water in a cauldron. Because it took time to empty and refill the tub, families often shared the same bath water, which was unfortunate for the last bather, who typically got stuck with tepid or cold and dirty water.

In wealthier residences, you might find a garderobe or a primitive, pre-plumbing toilet. The garderobe typically existed on a second story as a small nook or room that jutted out from the rest of the house. The room usually hung over a creek, river, moat, or street, and the “toilet” comprised a hole in the center of the floor. People would go to the bathroom in a chamber pot or directly over the opening, dropping waste to the street or water body below — not the grandest waste management solution in the history of bathrooms.

17th Century

By the 17th century, public baths were uncouth. Private bathtubs were standard and slightly more refined than the wood basins of the early 1500s. The new tubs still had a wood exterior, but steel lined the interior as an insulating layer, allowing water to stay warmer longer. Unfortunately, the filling, emptying, and refilling was a hassle, so people bathed infrequently. To help relieve the stench of the unwashed, perfumes and pomanders became common marketplace items.

Despite the invention of the flushing toilet in 1596 by Sir John Harrington, 17th-century toilets still comprised chamber pots beneath a washbasin on a washstand. People still eliminated waste in outhouses or waterways. The flush toilet would not become popular until the 19th century.

18th Century

In the history of bathrooms, the 18th century was a turning point in design. This era didn’t see many changes with the bathtub; most still comprised a wooden exterior with a metal insulating layer. However, other bathroom elements were advancing, including the room itself. During the century, many new construction homes had separate washrooms from the other living spaces, especially in the latter years.

Cabinetry and vanities were commonplace, and the mirror became a design accent as the manufacturing of mirrored glass became more affordable. Reserved for the wealthy, the looking glass was a status symbol; people often draped theirs with curtains, and manufacturers produced them with ornate frames. In the latter half of the century, glass-making processes improved, making mirrors available to people of all income levels.

Finally, while chamber pots were still standard, the invention of the commode improved the comfort of its use. A commode was a chair with a hole in the seat. Below the seat was a shelf that could hold the chamber pot. People still emptied the pots in waterways or other designated areas.

In 1775, Alexander Cummings improved on Sir John Harrington’s flushing toilet design. Cummings’s improvements were the last of several developments that would lead to the adoption of the flush toilet in the 19th century.

19th Century

The history of bathrooms took a giant leap forward in the 19th century. Public health crises and the Industrial Revolution motivated governments to make regulations and improved what was possible. Installations of sanitation and sewer systems became standard. Flushing toilets and running water became the norm in advanced societies.

As plumbing developed, becoming a regular part of home construction, moveable commodes and basins ended. It was typical to find stationary and flushable toilets in most wealthy homes. The 19th century was the era of Thomas Crapper, Henry Dulton, and J.L. Mott.

Exposed pipes became status symbols. People in the era commonly adorned their bathrooms with embossed, glazed, or gilded exposed pipes. Also, toilet paper became a new luxury. Patented in 1857 by a New Yorker named Joseph Gayetty as Medicated Paper for the Water Closet, every sheet included his name. Before toilet paper, people used things like seashells and corncobs.

20th Century

The 20th century is another pivotal period in the history of bathrooms, as well as the rest of the home. By 1925, half of all homes in the U.S. had electric power. By the start of World War II, electric lighting was commonplace.

In addition, the 1900s saw the rise of modernism and consumerism. Ideas like interior design became available to most income levels for the first time. The century also gave rise to the concept of disposable income, with homeowners splurging on things like shower mats and curtains, vanities, and towel-, toothbrush-, and soap-holders.

The 1950s became the era of ceramic and plastic tile. Plastic was a “space age” and innovative material. People continue to prefer ceramic tile in bathrooms for its waterproof and hygienic properties, but plastic is no longer as highly regarded.

21st Century

Still in the first quarter of the 21st century, it is difficult to speculate on the future trends or changes to current bathroom design. That said, most people love simplicity and clean lines. Modern bathrooms typically have floating vanities, freestanding tubs or showers, and large windows. Designers use software to plan spaces and make use of every nook and cranny.

The History of Bathrooms and Beyond

Expertise Keeps the Water Flowing

The long history of bathrooms has seen the advancement of sanitation and septic systems and the rise and fall of various design trends. The rise of indoor plumbing and flushing toilets led to the necessity of plumbing system maintenance and inspections. Sanitary Plumbing is your one-stop shop for all your plumbing needs and installations. Call our team at 212-734-5000 to schedule an inspection, repair, or installation.

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