Required PSI Water Pressure for Appliances
It is important to have the right water pressure (PSI*) when connecting an appliance to a water line. here are the recommended PSI ranges by appliance:
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Refrigerators - The water pressure must be between 20 and 120 PSI on models without a water filter and between 40 and 120 PSI on models with a water filter.
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Dishwashers - 20 - 120 PSI
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Washers - 20 - 150 PSI for top load washers and 10-120 PSI for front load washers
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Water Softeners - 20 - 125 PSI
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Reverse Osmosis Filtration - 40 - 125 PSI
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Whole Home Filtration - Up to 100 PSI
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Undercounter Filtration - 40 - 120 PSI
*PSI - pounds per square inch. Normal household PSI is approximately 40 - 45.