How to Eliminate Pressure Loss Between the Toilet & the Shower

Toilets and showers often share the same main supply line, which means they also share water pressure. When one of the devices is in use, the other may experience a loss in water pressure. The only way to correct this problem is to boost the overall amount of water pressure that's available to the entire plumbing system. Adjusting the water pressure regulator will increase the water pressure to the entire house, and dramatically cut down on the pressure loss when more than one fixture is being used at a time.

Pliers
Screwdriver

Instructions

- 1
  Locate the water pressure regulator inside the utility access panel, basement or crawl space. The brass regulator sits on the main water line near where it enters the house from the street.
- 2
  Unscrew the lock nut near the top of the regulator using pliers. Turn the nut counterclockwise several times until the nut is loose. It is not necessary to remove the nut, however.
- 3
  Turn the adjustment screw on the top of the water pressure regulator clockwise using a screwdriver. Turn the screw to the desired pressure level as indicated by the printed gauge below the screw. In most cases, setting the screw to the 80 psi mark will provide enough pressure for all the appliances in your home.
- 4
  Run the shower and flush the toilet at the same time to check the new setting. Tighten the lock nut when the desired pressure level is set.

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