If there’s an emergency, family members should know where the
master water supply valve is to protect against water leaks and
damage to your home from possible flooding.
These are the most likely locations for your master water supply
valve:
- Where the water supply pipe enters your home (typically, the
hose bib at the front of the house)
- Near your clothes washer hook-up
- Near your water heaters
Every home, apartment and business should have a master water
supply valve. Be sure you’ve found the right one. Try
turning it off and see if all the water faucets in the building
are shut off. If they aren’t, try again. Once you’ve found the
right valve, mark it with a tag, a bright ribbon or colorful
paint. Make it easy to see.
Additionally, you may see valves on or near your meter.
These are not the master water supply valve, but belong to Golden
State Water Company, and should never be touched.