banging pipes

[Tony]

When the toilets in my house are done filling the pipes make a banging sound. What can be done to stop the knocking? Thank YouLance

[lance commike]

the cause is the sudden stopping of the motion for the fast flowing water thru your pipes. When this water suddenly stops the energy needs to go somewhere. It is absorbed thru the motion of the pipes. Possible solutions could be: Additional strap hangers on the piping to prevent the escessive movment, (when installing these, have someone flush the device and watch the pipe to see is your handywork solved the problem. Sometimes old tank valves have a tendancy to shut off to quickly, You might consider replacing this unit with a new one, its a fairly simple job, a properly working valve will open fully until the tank is about 3/4 full then slowly close and gradually fill the remaining 1/4 with a very low hiss. If this valve is five years or older, replace it. Good luck, Tedbo: When the toilets in my house are done filling the pipes make a banging sound. What can be done to stop the knocking? Thank You: Lance

[lance commike]

Thank you ted, i recently replaced the valve in both the toilets in my house.: the cause is the sudden stopping of the motion for the fast flowing water thru your pipes. When this water suddenly stops the energy needs to go somewhere. It is absorbed thru the motion of the pipes. Possible solutions could be: Additional strap hangers on the piping to prevent the escessive movment, (when installing these, have someone flush the device and watch the pipe to see is your handywork solved the problem. Sometimes old tank valves have a tendancy to shut off to quickly, You might consider replacing this unit with a new one, its a fairly simple job, a properly working valve will open fully until the tank is about 3/4 full then slowly close and gradually fill the remaining 1/4 with a very low hiss. If this valve is five years or older, replace it. Good luck, Tedbo: : When the toilets in my house are done filling the pipes make a banging sound. What can be done to stop the knocking? Thank You: : Lance

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