Troubleshooting
Where Is My Main Water Shut-Off Valve?
In most metro Phoenix slab-on-grade homes, the main water shut-off is on an exterior wall near the front hose bib, often in a small box or behind an access panel, or at the water meter near the street. Turning it clockwise (righty-tighty) shuts off water to the whole house. Find and test it now, before an emergency, so you're not searching while water is spreading.
What to do right now
- Walk the exterior wall nearest the street and look for a hose bib; the main valve is usually within a few feet
- Identify whether you have a round handle (turn clockwise to close) or a quarter-turn lever (turn perpendicular to the pipe)
- Test it once now by closing it and confirming a faucet runs dry, then reopen slowly to avoid pressure shock
Where to look
- Main shut-off located on an exterior front wall, frequently near the hose bib closest to the street
- Shut-off at the water meter box near the curb (you may need a meter key for the city-side valve)
- On homes with a pressure-reducing valve or softener loop, a valve in the garage or near the water heater
- Older or remodeled homes occasionally have it in a utility closet or crawlspace
When to call a pro
If the quick fixes do not solve it, this is usually a leak detection job. Liberty dispatches 24/7 with upfront pricing.
Where Is My Main Water Shut-Off Valve?, FAQ
- Can I shut the water off at the meter instead?
- Yes, the meter has a valve, but the city-side valve often needs a meter key, and shutting it can be against utility rules. Use your home-side main valve when you can and keep a meter key as backup.
- My shut-off valve won't budge. What now?
- Don't force an old gate valve. The stem can snap. Shut the wall-side hose bib or fixture valve for now, and have the main replaced with a quarter-turn ball valve so it works when you actually need it.
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