If the valve leak persists turn off the main water shutoff valve then disconnect the valve and replace it.
Valve under kitchen sink leaking.
Place a throw away towel or a bucket under the valve.
Avoid gumming up the inside of the shutoff valve.
If there aren t individual shutoff valves.
Support see jane dri.
Twist the valve under your sink to turn off the water supply valve or valves.
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.
If you do have to replace the water supply valve under your kitchen sink.
Replacement of the valve is the only fix in.
If your water supply valve is leaking you may not need to replace it.
A leak coming from the faucet is easy to spot since water often pools up around it when the sink is turned on.
Alternatively it could leak water under the sink meaning you ll only notice the leak if you look under the counter while the faucet is on.
Don t use any pipe dope or plastic tape on the valve stem s threads.
Take the valve to your local home improvement store or go on.
If the water stops leaking the packing nut was the problem.
A worn out washer is among the most common causes of leaking sinks.
If the water continues leaking the packing nut or the valve fixture has been compromised.
Remove the valve with a wrench.
Turn off main water supply to house.
Sink leaks caused by worn out washers can be fixed by simply replacing the washer.
Reassemble the shutoff valve turn the main house valve back on and check for leaks.
Required tools for this project.
The kitchen faucet leaking under the sink is a fairly common issue.
The constant friction results in the washers wearing out by which time you will start noticing leaks around the spout.
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.
However calling a plumber can be expensive.
There s an easy way to fix it and you may want to give it a try.