Glossary: Water Pressure Key Terms
High Water Pressure
High water pressure, which is generally considered anything above 60 psi, is advantageous in some situations including firefighting and high-pressure washing. However, in regard to home plumbing systems, it can be damaging because water with a strong "push" behind it can erode or wear away materials, causing water heaters to leak, water pipes to bang or leak, faucets to drip and washing machines and dishwashers to experience excessive noise and break-downs. Therefore, water flowing at a rate in excess of what is necessary to satisfy normal fixture or appliance demands becomes damaging, wasteful and reduces the life expectancy of equipment in the system. More important to the average homeowner, though, is the fact that high water pressure can add to the cost of water, energy and wastewater bills.

If you are experiencing high water pressure, water pressure regulators may be a reasonable solution for your problem. Water pressure regulators, also called water pressure reducing valves, are compact, inexpensive devices that perform two functions: (1) they automatically reduce the high incoming water pressure from the city mains to a lower, more functional water pressure suitable for the home; (2) they "regulate" or maintain a set water pressure in the home - usually 50 psi - thereby insuring home piping and appliances operate under a safe, moderate and satisfactory pressure.

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