How to Install Shut-Off Valves and Supply Tubes Part 2
In Part 1 of this guide to installing shut off valves and supply tubes, you removed the old supply tube and added some compression joints and compound to the new pipe. In Part 2, you will learn how to bend the tubes around so that you can attach them to the shut-off valves, trim down the supply tubes to the correct length and add supply lines to tailpieces and shut-off valves. Adding a shut off valve to your supply line can help you to reduce the amount of water you lose during a leak and will also assist you to do basic repairs to a sink or tub.
Step 1 - Add the Valves to the Tubes
Once you have prepared the supply tube pipe, you can then push the valve onto the end of the pipe. Slide the compression fitting on the pipe up the tube until it touches the valve, and then tighten it using the wrench. You can then manipulate the tubes so that they are ready to be fitted to the outlet pipes.
Step 2 - Bend the Pipes
Taking the supply tube in your hand, carefully bend it around so that it adopts a curved appearance. You should be able to do this by simply moving the supply tube gently. Don't force it to bend, otherwise you may crack or split the tubing, which will result in leaks and damage to the supply line itself. Bend the pipes around until you have the desired amount of curvature.
Step 3 - Add the Supply Line
Attach the supply line to the tailpiece of your drain, and then tighten it around using your wrench. You may also need to screw in an outlet screw, but most modern supply lines do not need this. You should then stretch the supply line until it reaches the shut-off valve on the pipe. Connect the bottom of the supply line to the top of the valve, and tighten it using your hand. You can then tighten it using the wrench to get a better fit.
Once you have fitted the supply tube, you can then add a layer of caulk around the edge of the tube, so that it remains water tight. Turn the water back on, and check that there are no leaks along your shut off valves or supply tubes.
Step 4 - Cutting the Supply Line
When you come to fit the supply line, you may find that it is a bit long for your needs. You can allow it to simply hang down behind the sink, but most people prefer to cut it. In order to preserve the integrity of the tube, you would be best advised to use a pipe cutter, as this will not sever the circle of the supply line, and will not crush it, either.