How to Reduce the Water Pressure to Your House


If the water pressure in your water lines is too great, your water lines could rupture and cause a leak in your basement, under a sink or even in a water line in the wall. If you have very high water pressure, you may want to reduce the pressure of the water coming into your home. Generally, the water company did most of the work for you by installing a pressure regulator valve.

Things You'll Need

  • Pliers
  • Locate the area in your basement where the city's water pipe comes through the wall. You will notice a meter, regulator and a shut-off valve.

  • Locate the cone-shaped pressure reducer located in-line where the water pipe comes out of the wall. The pressure reducer has a stem sticking out of it.

  • Place a pair of pliers onto the step and turn it counterclockwise several times to reduce the water pressure. Have a second person run water from a faucet at full blast and have them tell you when the pressure of the water reduces to acceptable levels.

Tips & Warnings

  • If you cannot locate a pressure regulator in line with the shut-off valve, look around your furnace. Your water likely runs through the furnace to heat the water instead of a water heater.
  • If you do not locate the pressure regulator valve by the furnace then you likely do not have one. If you do not have one, have a licensed plumber install the valve to conform with permits and ensure safety.

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