Step 2 · Loosen the Locknut

This is the step people usually slow down on. Go finger-tight first, then a quarter turn. No rush — replay the clip whenever it helps.

The PRV is a bell-shaped brass valve typically located on the main water line shortly after the main shutoff valve and water meter. Before making any adjustments, use an adjustable wrench or pipe wrench to loosen the locknut that secures the adjustment screw on top of the PRV. Turn the locknut counter-clockwise about a half-turn to one full turn. This will allow the adjustment screw to be turned freely.