once again Google to the rescue-- GOOGLE " how to add sink shut off valve" how to videos.
This process is too in-depth for me to just sit and type here for you without knowing if you are using Copper, PVC, or Pex. Plumbing. However it is a fairly simple process for the average handyman such as myself who has done it many times in the past. But for a novice I am suggesting DIY How To Videos.
For Copper pipes:
shut off the main water supply to the water-line you will be working on
turn the water faucett on in the kitchen and bathroom and leave it there until you finish working.
If you are working on the cold water line then only open the cold water from the kitchen and bathroom. This is to allow air into the pipes so that the water will drain when you cut the pipe-- water in the pipe will not allow you to solder (sweat) the pipes together-- the pipes must be clear of water to reach its proper heat range for the solder to melt and seal on copper pipes.
if the tee on your valve is 2 inches from outter edge to outter edge then you will want to cut a section of pipe of about 1. 1/4 inches long.
once the pipe is cut use emery cloth, sandpaper, or a wire brush to clean the pipe ends in and out before applying flux -- once you applied the flux-- plact the valve in place in between both pipe pieces and begin to heat testing periodically with the tip of a solder until you see the solder starting to melt.
The purpose of a bathroom sink shut off valve is to control the flow of water to the sink. To properly operate it, turn the valve clockwise to shut off the water supply and counterclockwise to turn it back on.
The shut off valve under the sink is used to control the flow of water to the sink's faucet. It allows you to easily turn off the water supply in case of a leak or when performing maintenance on the sink.
The water shut off valve for the dishwasher in your kitchen is typically located under the sink.
To determine if the sink shut off valve is leaking and needs repair, check for any visible signs of water dripping or pooling around the valve. If there is evidence of a leak, it is likely that the valve requires repair or replacement.
To locate and operate the water shut off valve under the sink in case of an emergency, first, look for a valve near the pipes under the sink. Turn the valve clockwise to shut off the water supply. It's important to know the location of this valve beforehand to quickly respond to any water-related emergencies.
To perform a sink shut off valve replacement, first turn off the water supply to the sink. Use a wrench to disconnect the old valve from the water line. Install the new valve by connecting it to the water line and tightening it with a wrench. Turn the water supply back on and check for any leaks.
The shut off valve under the sink is used to control the flow of water to the faucet. It can be used effectively to quickly stop the water supply in case of a leak or when performing maintenance on the sink or faucet.
With the water main shut of valve of course
The shut-off valve under the sink may not turn off due to a faulty valve, mineral buildup, or a worn-out washer. It is important to address this issue promptly to prevent water damage and ensure proper functioning of the plumbing system.
The washer in the shut off valve has probably split or come off completely over time.
To replace a kitchen sink shut-off valve, first turn off the water supply to the valve. Use a wrench to disconnect the old valve from the water line. Install the new valve by connecting it to the water line and tightening it with a wrench. Turn the water supply back on and check for any leaks.
If the shut off valve turns but does not shut the water off, the washer in it has split and probably made it to the faucet. It was blocking part of the hole on the hot side and at some point either shifted or made it through the faucet and in in the screen in the end of the spout. Shut the main water off and replace the washer in the shut off valve.