I have the faucet installed in the sink but not connected to the hot and cold water.
Sink supply valve leak.
The hot and cold water supply under the sink is turned off at the valves.
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.
Fortunately a bad shut off valve is extremely easy to replace.
Turn off the water at the house s main shutoff then disassemble the problematic shutoff valve without disconnecting the valve from either the water supply line or the line leading to the toilet.
The cold water supply line from the wall is dripping water slowly.
If this happens to you you can simply replace the valve with a new valve that matches the old one.
Unscrew the handle the packing nut and the threaded valve stem photo 2.
My water supply valve under the kitchen sink leaks.
These inexpensive little valves rarely get used and when they do sometimes they leak.
Turn on the water supply to the sink once the valve is back in place and the plumbing has been completely re secured.
At this point if water is still exiting the valve it will need replacement.
As the line fills watch out for leaks.
If there is a leak coming from a supply line connection to the faucet or from the hot and cold water on and off valves it is probably related to a.
If the leak persists before replacing the entire valve try this.
Water valve cutaway showing packing washer.
Faulty seals are easily detected.
Place a bucket under the old valve.
When cutting the supply line cut slowly and gently so.
Deburr the pipe with a deburring tool.
Turn off the next valve up the line which may be the main water supply valve.
After you are done fixing your leaky water shutoff valve check out how to fix a leaky shutoff with a supply valve piggyback.
How to fix a leaky kitchen sink at the supply line.
I am replacing the faucet in my kitchen.
To replace the packing washer remove the handle and packing nut.
Required tools for this project.