Step 5 · Lock the Adjustment and Final Check

Once your water pressure gauge shows a steady reading within the 50-60 PSI range, the adjustment is complete. Return to the PRV. Hold the adjustment screw in place with your pliers or screwdriver to prevent it from turning, and use the adjustable wrench to tighten the lock nut by turning it clockwise. Snug it down firmly, but do not overtighten. Finally, take one last look at your pressure gauge to ensure the pressure didn't change while tightening the nut. You can now remove the gauge from the faucet.

Tools and Materials

Water Source Water Test Pressure Gauge WSPGH100Adjustable Wrench