Review on Enhanced Efficiency: Stainless Single Pressure Internals Display for Optimal Performance by James Holker

Home appliances such as dishwashers, washing machines and ice makers are rated for operating pressures below 70psi. If the service water pressure is higher, a pressure reducing valve is needed to reduce the pressure of the water entering the house. After a while, dirt from the water and other factors will cause the valves to stop working properly, which often means the water pressure will rise above a safe limit. The result can be expensive repairs to household appliances. A pressure gauge is an inexpensive way to check water pressure.