Most plumbing emergencies get worse in the first ten minutes, while someone looks for the right valve. Knowing a handful of locations and habits ahead of time is the cheapest plumbing insurance there is. Walk your home with this list once, and label what you find.
1. Find Your Main Water Shutoff
This valve stops all water to the house. In most Sacramento area homes it is in one of these places:
- Outside, on the wall or near the hose bib on the side of the house that faces the street.
- In the garage, where the main line enters the house, often near the water heater.
- In a small box near the house, sometimes together with a pressure regulator.
There is also a valve at the meter box near the curb. That one belongs to the water utility and usually needs a meter key, so treat it as a backup.
Test your main shutoff once a year. Turn it off, check that a faucet stops running, then turn it back on. A valve that will not turn or will not fully stop the water needs to be replaced before an emergency, not during one.
2. Know the Small Shutoffs
- Under sinks and behind toilets: small oval-handled valves called angle stops. They let you stop water to one fixture without shutting off the house.
- Water heater: a valve on the cold-water pipe going into the top of the tank.
- Washer and ice maker: valves in the laundry box and behind the refrigerator.
If a small shutoff leaks or will not turn, it is a simple swap for a plumber. See our valve and appliance connection service.
3. Know Where Your Gas Shutoff Is, and When Not to Use It
The gas shutoff valve is on the pipe next to the gas meter. A quarter turn with a wrench stops the gas. Use it only in a real emergency, such as a smell of gas after an earthquake. Once it is off, the utility has to turn it back on and relight pilots. If you smell gas, leave the house and call 911, then PG&E. Read more in signs of a gas line leak.
4. Find Your Sewer Cleanout
The cleanout is a capped pipe, usually outside near the foundation, that gives direct access to the sewer line. When the main line backs up, a plumber can clear it from there without pulling a toilet. Keep it visible and free of soil and plants. Many older homes do not have one, and adding one is a common upgrade. See sewer cleanout installation.
5. What to Do When a Pipe Bursts
- Shut off the main water valve.
- If water is near outlets or appliances, turn off the power to that area at the breaker panel, if you can reach it safely.
- Open a faucet on the lowest floor to drain the pressure.
- Move belongings, take photos for insurance, and start removing water.
- Call a plumber. Our emergency plumbers take urgent calls around the clock in the Sacramento area.
6. Habits That Prevent Most Plumbing Calls
- Kitchen: wipe grease into the trash, not the drain. Run cold water with the garbage disposal, and keep fibrous food, bones, and pits out of it.
- Bathroom: flush only toilet paper. Wipes labeled flushable still clog sewer lines.
- Water heater: flush sediment once a year. Sacramento water is moderately hard, and scale shortens tank life.
- Outdoors: disconnect garden hoses before freezing nights and cover exposed pipes. Hard freezes are rare here, but they do happen.
- Water pressure: household pressure should usually stay between about 40 and 80 psi. A simple gauge on a hose bib tells you. Constant high pressure wears out valves, supply lines, and water heaters.
- Supply lines: check the hoses to toilets, faucets, and the washer once a year, and replace any that are bulging, kinked, or rusty at the nut.
Plumbing Basics Questions, Straight Answers
Should I turn off my water when I go on vacation?
Yes, for longer trips it is a good idea. Turning off the main shutoff means a failed supply line cannot run for days. Set the water heater to vacation mode, or turn the gas valve to pilot.
Is it safe to use chemical drain cleaner?
No, we do not recommend it. It can damage older pipes and disposal seals, and it makes the job dangerous for whoever opens the drain next. A plunger or a hand auger is safer for a simple clog.
How do I know if I have a hidden leak?
Turn off every faucet and appliance that uses water, then watch the leak indicator on your water meter for ten minutes. If it moves, water is going somewhere. Our water leak detection team can find it without opening walls at random.
Can I replace a shutoff valve myself?
Yes, if you are comfortable shutting off the main and working with compression fittings. If the pipe behind it is old galvanized steel or the valve is soldered on, it is safer to call a plumber.
Related Guides
- How to Find and Fix a Toilet Supply Line Leak
- What a Sewer Camera Inspection Shows (and When You Need One)
- How to Unclog a Garbage Disposal (and When to Stop)
Found a Valve That Will Not Turn?
That is the best time to fix it, before you need it. See all our plumbing services in Sacramento.
