Water Hammer is Never Normal! December 2019 in Condensate Return, Videos Water hammer in a steam system is never normal. The video describes the 3 different types of water hammer. https://www.somes-nick.com/dev/wp-content/uploads/2019/12/SN-WATER-HAMMER-DOODLY.mp4 « Roadblocks to Heat Transfer in a Heat Exchanger Sizing a Pressure Reducing Valve? Here is the information you need. »