Step 2 · Test Initial Water Pressure
To get an accurate baseline, you must test the system's static pressure. First, ensure no water is running anywhere in the house—turn off all faucets, and make sure appliances like washing machines or dishwashers are not in use. Locate an outdoor hose bib or the cold water connection for your washing machine. Screw the water pressure gauge tightly onto the threads by hand. Open the faucet or valve fully. The needle on the gauge will jump up and settle on the current static pressure reading. Note this number. A typical residential pressure should be between 40-80 PSI.