Understanding Water Hammers in New Construction Homes
Have you ever heard a loud, jarring noise resembling a house-shaking bang while the water was running in your new construction home? If so, you're not alone. This article will explore the common causes of such a phenomenon, specifically focusing on water hammers, and offer tips for resolving the issue.
What is a Water Hammer?
A water hammer is a vibration in pipes that can cause unexpected and loud noises. This can happen when the water pressure changes abruptly, often due to a valve opening or closing quickly. In the context of a new construction home, understanding the causes and solutions to water hammers is crucial for homeowners.
Common Causes and Solutions
First, let's look at the possible causes of water hammers in a new construction home:
1. Valve Sudden Opening/Closing
One of the most common causes is the sudden opening or closing of a fixture valve, such as when a toilet, sink, or shower valve gets turned off abruptly. The resulting water hammer can create a loud thud and shaking of the pipes, particularly in larger diameter pipes with high pressure.
Example: When the irrigation system gets turned off in a house, the abrupt closure of the valve can cause water hammer, producing a noticeable noise.
To mitigate this issue, consider reducing your water pressure to a safe level, ideally between 50-60 PSI. Additionally, the plumbing installer can ensure that the water main valves are installed and operated slowly to prevent sudden pressure changes.
2. Trapped Air in Water Lines
Another common cause of water hammers is the presence of air trapped in the water lines. This can happen if the system is not properly purged of air before it is pressurized.
If you suspect that air is causing the issue, you might need to evacuate the system and ensure it is properly purged. This can be done by locating the air bleed valves in the system and allowing the air to escape.
Step-by-step guide: 1. Locate the air bleed valves, usually near the water hammer issue points. 2. Open the valve to release any trapped air. 3. Ensure pressure is restored to the system.
Once the air is eliminated, the water hammer should cease.
3. Inadequate Pipe Supports
Inadequate or insecure pipe supports can cause water hammers by allowing the pipes to vibrate and move. This can result in a series of loud bangs, typically heard when the water is running.
Ensuring that the pipes are securely fastened and supported can help reduce water hammer noise. Installing pipe supports and vibration dampeners can further enhance the stability of the system.
Consulting a Plumber and Requesting Builder Assistance
If the water hammer issue persists, it may be time to consult a professional plumber. Plumbers can help identify the source of the problem and provide the necessary repairs. Additionally, if the water hammer occurs in a brand new construction home, it's reasonable to request that the general contractor address the issue. The plumbing sub-contractor who installed the system would be the appropriate contact for resolving any deficiencies in the work.
"If it keeps happening, ask your builder to have the plumbing subfix it." - From a professional's experience.
Prevention and Maintenance
To prevent water hammer in the future, it's important to ensure that the plumbing system is properly installed and maintained. Regular checks and maintenance can help identify potential issues early on and prevent them from becoming more serious.
For instance, regular inspection of the supply lines and ensuring that all valves are functioning correctly can help avoid the sudden changes in water pressure that lead to water hammer.
Conclusion
Water hammer is a common yet disruptive issue in plumbing systems, especially in new construction homes. By understanding the causes and implementing proper solutions, homeowners can minimize or eliminate this noise, ensuring a more comfortable and quiet environment. Consulting a professional plumber and addressing the issue with the builder, if necessary, can lead to a long-lasting solution.