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Water Leaks and Emergencies

Water Pressure

Water pressure varies in different parts of the City depending upon location and demand. According to the California Plumbing Code, you are required to have a water pressure regulator on your property if the pressure in your area is more than 80 pounds per square inch (psi). Regulators are the responsibility of the property owner. Most professional plumbers can fix or install regulators.

If you experience a water pressure problem, you can request the water pressure in your area be checked by calling (619) 515-3525. A City Water Operations crew member will test the water pressure at the nearest fire hydrant to your home, and the findings will be reported back to you. Water pressure normally fluctuates +/- 10 psi. If the water pressure in your neighborhood is found to be normal, then the water pressure problem is most likely due to a problem with the plumbing system on your property.

To find the normal pressure range for your area please contact the Geographic Information Systems (GIS) Section by calling 619-527-7482

High Water Pressure

The most common cause of a sudden increase in water pressure is a faulty regulator. The regulator may need to be adjusted or replaced. You may want to contact a plumbing professional to inspect the regulator.

Low Water Pressure

There are a number of possibilities for a decrease in water pressure.

  • Your water regulator may have failed in the closed position, reducing the water flow, and may need to be inspected by a plumber.
  • If you live in an apartment or condominium or have a business that shares a water meter with others, your neighbors may have increased their water use resulting in an overall decrease in pressure.
  • If water mains are being replaced in your community, there can be a decrease in water pressure while customers are connected to temporary water pipelines during construction.
  • Leaks can also decrease water pressure.