The answer to 'pipe constantly running' is that there are several common causes, including a faulty toilet flapper, a leaky faucet, or a problem with the water supply line. This can lead to high water bills and water damage if not addressed.
Some common symptoms include the sound of running water even when no taps are in use, the water level in the toilet bowl constantly running, or unexpectedly high water usage. Solutions may involve replacing worn washers, tightening connections, or identifying and fixing leaks. If the issue persists or you're unsure of the cause, it's best to call a professional plumber to diagnose and repair the problem.