Reassemble the shutoff valve turn the main house valve back on and check for leaks.
Valve under kitchen sink leaking.
Sink leaks caused by worn out washers can be fixed by simply replacing the washer.
Turn off main water supply to house.
Remove the valve with a wrench.
Turn on the faucet and leave open allowing the remaining water in the line to empty into the sink.
If the water continues leaking the packing nut or the valve fixture has been compromised.
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If you do have to replace the water supply valve under your kitchen sink.
If the valve leak persists turn off the main water shutoff valve then disconnect the valve and replace it.
If the water stops leaking the packing nut was the problem.
Avoid gumming up the inside of the shutoff valve.
Place a throw away towel or a bucket under the valve.
If there aren t individual shutoff valves.
Take the valve to your local home improvement store or go on.
Replacement of the valve is the only fix in.
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.
Don t use any pipe dope or plastic tape on the valve stem s threads.
However calling a plumber can be expensive.
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.
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.
The kitchen faucet leaking under the sink is a fairly common issue.
Required tools for this project.
A worn out washer is among the most common causes of leaking sinks.
A leak coming from the faucet is easy to spot since water often pools up around it when the sink is turned on.
There s an easy way to fix it and you may want to give it a try.
The constant friction results in the washers wearing out by which time you will start noticing leaks around the spout.