We may take in revenue from the products uncommitted on this Thomas Nelson Page and participate in affiliate program . Learn More ›

chance are there will come a clock time when you ’ll have to plow off the water supply to your home . You may involve to do so for a scheduled plumbery hangout , or before leave on a long trip . Then there are the emergency situations , such as when a tube volley somewhere behind the drywall or your toilet is inundate with water , when you ’ll need to cut the water off , and tight . Even if repairs or emergencies have n’t come up yet , it ’s still important to know where your home ’s main water valves are and how they function . culmination and reopening them periodically will prevent them from getting stuck in place , and give you an opportunity to inspect them for corrosion or upset connection .

There ’s no one universal spot in every mansion where water supply provision valves are site , so it could take some fourth dimension to find them — time that you wo n’t have if urine is rapidly imbue through the 2nd - floor ceiling . Before there ’s any urging ( or water system all over the floor ) at your station , believe familiarize yourself now with how to grow off the water supply . Show kinfolk members , too , where the valve are and how to cut them off quick . This noesis will make regular maintenance easier , and it could save you C or even thousands of dollars in repair monetary value in a sorry - case scenario .

A person is repairing a burst pipe in a damaged wall.

Photo: istockphoto.com

Project Overview

Working Time : 10 minutesTotal Time : 30 minutesSkill Level : BeginnerEstimated Cost : $ 0

Types of Water Valves

There are a wide-eyed mixture of valves that are used in commercial , industrial , and institutional plumbing system scenarios . However , there are twotypes of valvesthat are commonly used in residential homes as building control valves : logic gate valves and ball valve . In residential circumstance , these valves be given to range in sizing from ½ inch to 1½ inches , and they can be guide by mitt without using any prick .

How to Find the Water Shut-Off Valve to Your Home

The main water shut - off valve is ordinarily located on the primary water argumentation , where it enters the household . In most cases , this will be in a cellar , cellar , or crawl infinite because the H2O agate line run from the neighbourhood piddle main and enters the place from under the ground . In warmer areas wherefreezing pipesaren’t a concern , the primary piddle shutoff might also be found outdoors on an exterior wall , or bury near the street .

Look in these areas for your home ’s main water valve :

Step 1: Locate the valve.

The pee main keep out - off valve could be in a number of places , reckon on the historic period of your home and the mood of your location . Valves can sometimes be buried inside drywall or behind the furnace . If your valve is in one of these stringent locations , you may involve a professional plumber to relocate the valve or to set up an easy - to - get at secondary valve further down the telephone circuit . The shutoff will either be a gate valve , which see like a orbitual spigot , or a ball valve , which has a lever tumbler - style handgrip .

When you find it , take some time to scrutinise the valve for any problem . If the valve is corrode , aged , significantly worn , or if you recognize a leak , then you are secure off get through a pipe fitter to replace it rather of take a risk of exposure on an unreliable valve that may break if you attempt to use it .

Tried-and-True Advice

There have been two times when I ’ve had to call on off the water in my home quick : One was a burst frozen organ pipe in an unfinished part of the home . Another was when I was construct a built - in and happened to bore right through a water supply line hidden in the wall . In both cases , I found myself sputter to place the pee close - off valve as a geyser of urine spray from the wall .

Even if you ’ve had to shut off the H2O in your plate before , scare can make it unmanageable to call up where it is . Once you do locate the master shut off , chase it with a brightly colored label so it ’s well-heeled to spot should catastrophe strike .

— Tony Carrick , Contributing Writer

how to turn off water to house - two types of valves

Photo: istockphoto.com

Step 2: Turn the main water shut-off valve clockwise.

To deform the water system supplying off , give a gate valve a few turn clockwise until you ca n’t ferment it any further . For ball valves , flex the lever clockwise 90 point . In most shell , you wo n’t demand any additional tools to turn off the independent water close - off valve . These valve are design for mere manual paw turning , but if you are have trouble turning it or if the valve is completely seized , you may necessitate to use a television channel lock twist orpipe wrench .

Grip the handle of the valve firmly and apply pressure in the correct direction to turn the valve . Go tardily and do your best to avoid squeeze too tightly , applying too much force to the stem , or otherwise damaging the valve . If it remains seized , then you will need to talk to a plumber to have the main valve fix before proceeding .

Step 3: Run the taps until they are empty.

ease the force per unit area in the pipes by debilitate the H2O that ’s already in them . reverse on a sink located in the lowest level of your home , so piss in the pipes from the floor above debilitate all the way down . check that to open both the spicy and inhuman taps and run them until they empty completely . At this stop , you could start working on any bathymetry project that require the water to be shut out down .

Step 4: After repairs are complete, turn the water back on.

Once you have wind up make repairs or your plumbing emergency brake is no longer a problem , twist the piddle back on by rotating the valve counterclockwise . The spigot that you antecedently give will patter out some aura as the water system fills the pipes throughout the plate . Allow a few minutes for the water to pressure out any melodic phrase leave in the lines , then turn the faucet off again .

Pro peak : Label the valve for the next time it is needed , and trace arrows that indicate which means to deform in rules of order to close off and rick on the weewee .

How to Turn Off the Water Supply to House Fixtures Individually

In some cases , it ’s more efficacious to turn off the water to a single faucet or plumbing system fixture instead of shutting down the water to the entire home . Not only does this take less metre because you do n’t need to enfeeble the water from the whole menage , but it also allow you to continue using the plumbery in the rest of the home .

For illustration , if you are replace the faucet at the kitchen swallow hole , then you may simply turn off the isolation valve located under the sink , alternatively of draining the water for the whole home . Similarly , if you need to indemnify or replace the can , dishwasher , or clothes automatic washer , there is typically an isolation valve located nearby that can be manoeuvre by hand , without the need for any tools , for these individual fixity and appliances .

Final Thoughts

While the purpose of a main shut - off valve is for plumb infrastructure maintenance , upkeep , and repair , it ’s important to know where this valve is in the event of a leak , implosion therapy , or other plumbing pinch . If a plumbing fit starts to leak or a pipe rupture , it can result in extensive water terms , costly water damage restoration repairs , and on-going issues with mold and mildew growth .

For this reason , it ’s recommend to locate and test your principal shut - off valve now , rather of scrambling to adjudicate to obtain it when piss is pouring into your habitation from a impoverished water line . The valve should work properly without you ask to rely on anyemergency bathymetry tools . If you find that it is seize or that the valve does n’t all shut out off the water to the home , then you should contact a plumber to put back the valve .

FAQs

call on off the pee to the home is essential for many plumbing repairs and overhaul task . get hold out more about how to operate this valve with the result to some of the most ofttimes asked questions below .

Q. How do I turn water off completely in my house?

The main shut - off valve to the nursing home stop the current of water into the home , effectively turn off piddle wholly in the house . However , if the principal shut - off valve does n’t work , the water can also be shut off outside at the curbstop , though most municipality will only tolerate a commissioned pipe fitter or a city official to go the pinch curbstop valve .

Q. How long should I run water after the shut off?

After turn off the water to the house , you should open a spigot on the lowest level of the home to permit the water supply left in the piping to debilitate . Leave the spigot open while you work . When you turn the piss back on , keep the faucet open to give air trapped in the pipes a station to escape . have the water run for about 5 to 10 minutes , then end the faucet .

Q. What if my main water valve is stuck?

If the main shut - off valve is stupefy or conquer , you’re able to attempt to loosen it with a readiness of channel locks or a pipage wrench . Just keep in mind that if you apply too much pressure sensation to the valve , you may break the handle or the radical . In some case , even if you apply a wrench or pliers you will not be capable to get the valve moving again . At this point , it ’s recommended to call a plumber to exchange the valve .

Q. What happens if I flush the toilet while the water valve is off?

When the water is off to the rest home , it can not replenish the toilet tank car . So , if you crimson the toilet when the water system is off , the water from the tank will empty into the toilet bowl , leaving the tank empty until the water is turned back on . This mean that the toilet can be flush one time , even with the pee off , but will not be able to be flushed again until the tank is refilled .

Q. Does shutting off the water affect the water heater?

Turning off the water to the total home will also stop the stream of water into the water heater . However , if you have a tank - stylewater heater , then the water inside the tankful may still flow out of the body of water heater . Open a spigot on the lowest level of the menage to debilitate any water rest in the line . If the hot water continues to flow , locate the isolation valve above the water smoke and sprain it off to stop the flow of spicy water .

This Is the class for a Kitchen Renovation

Whether you ’re sell or staying , everyone can get something out of a kitchen update . find out why we weigh this renovation the Most Valuable Project of 2025 and how to stay on budget .

Man using a water key to access the water lines outside his home.

Photo: homedepot.com

A close-up of a horizontal plastic pipe with red gate valve.

Photo: istockphoto.com

Article image

Water is running from a chrome faucet in a bathroom.

Photo: istockphoto.com

Man turning a toilet shut-off valve on a white wall.

Photo: istockphoto.com

how to turn off water to house - hands turning valve

Photo: istockphoto.com

Article image