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How to Prevent Water Hammer Damage In Your Plumbing System

Posted on: January 13, 2015

If your plumbing system suddenly makes a loud banging sound, you likely have have a plumbing problem known as “water hammer”. When water suddenly changes momentum under pressure, such as when a faucet valve is closed suddenly, a hydraulic shockwave is sent through the pipe, resulting in bang as the energy is released. If the pressure change is severe enough it can lead to damaged fittings or even burst pipes.

Preventing Water Hammer

A properly installed plumbing system has air compartments that compress to absorb sudden changes in water pressure. In some cases these compartments can fail to work if the water has gradually absorbed air or the compartments have become filled with water.

If you are experiencing water hammer you can restore the plumbing system’s air chambers by opening the faucet that caused the noise and allowing the water to completely drain out. Air will then replace the water and restore the shock absorbing capability inside the pipes.If the air compartment is below the fixture, you may have to drain the main supply lines to restore the air in the lines.

If the above steps do not cure the problem, the plumbing system may not have the necessary air chambers installed, or they may have become clogged over time. Your plumber can inspect the system to identify any problems and recommend solutions.

Have questions about water hammer or other plumbing problems? Call ABC Plumbing, Heating, Cooling and Electric, we are here to help.

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