Take the lid off the toilet, then push down on the float until the water starts to fill the tank. Cut the pipe 1/2 inch before the valve using either a plumber's pipe cutter or a. Pin by bailliefpebzg on Clean in 2020 Hairball, Arm and Find out how to fix noisy water pipes and stop banging in pipes. How to stop water hammer from toilet . Flush all the toilets in the home. Shut off the water to the house at the main valve. As the pipes drain, so does the water in the air chambers. Let water drain from open faucets. It is possible to reduce the effects of the water hammer pulses by restricting the flow rate or in severe cases using accumulators or arrestors. Water hammer on a toilet supply line occurs after flushing when the toilet is full and the fill valve shuts off. The first step is to shut off the main water supply valve. Check these first, is it a combi ? Ways to eliminate water hammer after flushing a toilet include installing a permanent water hammer arr...