Fixture shutoff valves are the most common valve type you'll find in your home, and can be seen near sink faucets, toilets, and any other fixture that runs water. Angled fixture shutoff valves are ...

Ideally, shutoff valves are close to the fixtures they serve-under a sink or toilet tank ... A leak of this type can sometimes be stopped simply by tightening the stem nut a bit.

Here's how to install a hot or cold water shut-off valve under your sink. Apply plumbing sealant to the shut-off threads and attach it with a nut from the faucet tube. Measure the length of the copper ...