These inexpensive little valves rarely get used and when they do sometimes they leak.
Replace sink angle valve.
There are two basic types straight stops and angle stops and these valves normally remain on and are seldom closed functioning maintenance free for years.
If this happens to you you can simply replace the valve with a new valve that matches the old one.
To reattach the new supply line and angle valve first remove the compression nut and slide it over the copper nipple.
1 2 nom x 3 8 od comp.
Place a bucket under the old valve.
Open the faucet to drain the line.
Monster master brass angle stop valve shut off quarter turn water sink bathroom toilet kitchen shower plumbing 5 8 od.
Turn off the next valve up the line which may be the main water supply valve.
With a few household tool.
Today i show you how to quickly replace a faulty water shutoff valve under the sink.
Cut the supply line with a pipe cutter leaving enough room between the escutcheon plate and the cut to allow installation of the valve fitting.
1 4 turn mm fv 001 4 4 out of 5 stars 113 9 99 9.
When cutting the supply line cut slowly and gently so.
Replace the compression sleeve and tighten using two crescent wrenches one wrench holds the angle stop in place the second wrench tightens the nut.
Replacing a shut off valve compression valve or angle stop may seem like a daunting task but it really takes less than 5 minutes.