Pipe isn't properly fastened to keep it from knocking. An anti-hammer arrester installed in cold water line should help eliminate knocking. The knocking caused by sudden burst of water pressure in line when a valve or faucet is opened.
Not all plumbing devices do; some have combined hot/cold taps. In either case, hot and cold water lines are separate, the hot water coming from a water heater. The simplest taps merely control each...
materials tend to expand when they get hot, and that is true for sewer pipe material as well. Whether it's cast iron or ABS, the pipes will try to expand when they get hot and when they try to get...
It's called water hammer. It's caused when a valve is sudden opened or closed. It's usually happens with fixtures that draw large amounts of water like washing machines. You can install water hammer...