If you re fixing a hot water valve turn off the hot water outlet on the water heater.
Water shut off valve leaking under sink.
Shut off the water to the sink.
Reassemble the shutoff valve turn the main house valve back on and check for leaks.
Required tools for this project.
What can i do without shutting off the main water supply.
There s an easy way to fix it and you may want to give it a try.
Attach the water line from the faucet to the water supply shut off valve using plumbers tape.
Ignoring minor leaks can waste up to three gallons of water every day and can also lead to permanent water stains and rot under your sink.
Under sink shutoff valves also called fixture shutoffs or stop valves allow you to turn off the water to the sink or other fixture without having to use the home s main shutoff.
If it s a cold valve find the main water shutoff for the house usually.
Pull the nut back to expose the valve s threaded spindle.
Don t use any pipe dope or plastic tape on the valve stem s threads.
Turn on all the faucets and flush all the toilets associated with the main shutoff valve to empty the pipes of water.
I live in a condo where there is only one main shutoff valve for every four units.
But the moment i slightly turn the valve to close the water sprays all around the valve.
Support see jane dri.
Close the main water supply to the leaky valve.
Good job you have fixed your leak.
Place a bucket or a thick towel on the floor under the leaky valve just in case some residual water leaks out during work.
These inexpensive little valves rarely get used and when they do sometimes they leak.
There should be no leaks and all should be good.
Once tight and in place turn the valve on and test the kitchen faucet.
Loosen the bonnet nut on the leaky shut off valve with an adjustable wrench.
How to fix shut off valve leak.
When i open it the splash of water stops and there is no leaks.
If this happens to you you can simply replace the valve with a new valve that matches the old one.
Turn the home water supply back on.
Turn the water supply valve under the sink off.
Wrap teflon packing around the spindle then hand tighten the bonnet nut back into place.
If your water supply valve is leaking you may not need to replace it.
The shut off valve under a sink can go unattended for years without giving any problems but once it starts leaking it can lead to a mess quickly.