Turn on all the faucets and flush all the toilets associated with the main shutoff valve to empty the pipes of water.
Water shut off valve leaking under sink.
But the moment i slightly turn the valve to close the water sprays all around the valve.
This valve usually is in the basement or a utility closet and it will be clearly labeled.
There s an easy way to fix it and you may want to give it a try.
Don t use any pipe dope or plastic tape on the valve stem s threads.
Loosen the bonnet nut on the leaky shut off valve with an adjustable wrench.
Place a bucket or a thick towel on the floor under the leaky valve just in case some residual water leaks out during work.
I live in a condo where there is only one main shutoff valve for every four units.
Turn the water supply valve under the sink off.
If the valve leak persists turn off the main water shutoff valve then disconnect the valve and replace it.
Support see jane dri.
If it s a cold valve find the main water shutoff for the house usually.
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.
These inexpensive little valves rarely get used and when they do sometimes they leak.
If you re fixing a hot water valve turn off the hot water outlet on the water heater.
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.
When i open it the splash of water stops and there is no leaks.
Turn the home water supply back on.
Close the main water supply to the leaky valve.
Attach the water line from the faucet to the water supply shut off valve using plumbers tape.
Reassemble the shutoff valve turn the main house valve back on and check for leaks.
If this happens to you you can simply replace the valve with a new valve that matches the old one.
How to fix shut off valve leak.
Shut off the water to the sink.
There should be no leaks and all should be good.
Required tools for this project.
Avoid gumming up the inside of the shutoff valve.
What can i do without shutting off the main water supply.
Good job you have fixed your leak.
Pull the nut back to expose the valve s threaded spindle.
Once tight and in place turn the valve on and test the kitchen faucet.