31. In the home, water hammer may occur when a dishwasher, washing machine, or toilet shuts off water flow. 32. A . The thudding sound is made by too-fast a shutoff, which causes a form of water hammer . 33. Water hammer is cavitation caused by the sudden stop of the valve occluder as it contacts the valve housing.34. If that can't be done, you can install a water hammer arrester on the line leading to the toilet. 35. As the 19th century witnessed the installation of municipal water supplies, water hammer became a concern to civil engineers. 36. The delivery pipe is much less critical since the pressure vessel prevents water hammer effects from traveling up it. 37. The best way to prevent water hammer is to make sure that the return pipes are inclined toward the boiler. 38. This drop in pressure upon valve closure also helps to avoid the effects of water hammer within the delivery pipe. 39. Steam distribution systems may also be vulnerable to a situation similar to water hammer , known as " steam hammer ". 40. It is possible to reduce the effects of the water hammer pulses with accumulators, expansion tanks, surge tanks, and other features.
