After all, they're machines that have to work hard to get your clothing cleaned. However, some models offer noise suppression materials built into the appliance's housing to muffle noise, as well as anti-vibration technology that also helps to reduce noise when the washer is operating. ...
A water hammer arrester plumbing assembly for washing equipment such as dishwashers and laundry washers includes a receptacle designed to be mounted on the wall adjacent the appliance, hot and cold water valves, and a water hammer arrester of the mechanical type including a hollow cylindrical body...
Portable plumbing and electrical unit for multiple installation of washing machinesCARVER DAVID C.