Noise when hot water enters drain

atDev

Whenever we empty a boiling pot, or the dishwasher drains out hot water, or we continuously run hot water from the faucet we get a clicking/thumping sound from the pipe.

Is there anything that can be done to prevent this noise? I assume it is the expanding of the pipe from the heat? However I thought the PVC piping was made to withstand this?

AllanJ

The noise is from the pipe rubbing against the wood studs and/or joists it passes through, as it expands from the heat.

__________________
The disadvantages of crab apple trees. In summer, the apples are too sour to pick and eat. In winter the birds come and leave dropping all over the place.

atDev

It is a continuous click until all water drains or we put cold water down the drain. How can this be remedied? This is the first house we have ever had this problem on.

TheEplumber

Open the wall and enlarge the holes or replace with cast iron. The installation is rubbing on wood. No clean, easy fix.

__________________
When posting in forums, letting us know your location will help others give better feedback/advice/solutions to your questions