Home > categories > Minerals & Metallurgy > Copper Pipes > Thudding noise in pipes?
Question:

Thudding noise in pipes?

I have a new construction townhouse. Whenever I take a hot shower or require hot water upstairs I find that drawing any cold water from kitchen sink or refrigerator immediately after will result in a light thudding noise in the ceiling pipes. Is this just them expanding? Once you wait a while or run cold water in shower at the end there is no thud. Thank you!

Answer:

I think that it is poorly supported water pipes.
problematic thing. look into with google. that will may help!
I think that it is poorly supported water pipes.
problematic thing. look into with google. that will may help!
renpen is partially correct. Whether you have copper pipes or the new PEX pipes, the turning off and on of valves creates pressure in the lines. That pressure translates into pipes wanting to move. Many cities now require expansion chambers in the plumbing system, and their purpose is to absorb those shocks and reduce pipe movement (also called water hammer) There's nothing necessarily wrong, but the noise can become annoying. This should fall under warranty.
renpen is partially correct. Whether you have copper pipes or the new PEX pipes, the turning off and on of valves creates pressure in the lines. That pressure translates into pipes wanting to move. Many cities now require expansion chambers in the plumbing system, and their purpose is to absorb those shocks and reduce pipe movement (also called water hammer) There's nothing necessarily wrong, but the noise can become annoying. This should fall under warranty.

Share to: