Step 1 · Measure Initial Water Pressure

First, ensure no water is running inside the house (no washing machines, dishwashers, or showers). Locate an outdoor hose bibb or a laundry sink faucet. Screw the water pressure gauge onto the faucet threads, ensuring a snug fit by hand-tightening. Open the faucet fully. Read the pressure in PSI (pounds per square inch) on the gauge's dial. This is your baseline static pressure. A reading above 80 PSI is too high; the ideal range is 50-60 PSI. Note this initial reading.

Tools and Materials

Watts 3/4 in. Plastic Water Pressure Test Gauge DP IWTG