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Replacing a sill cock

Posted by Henry in MI on March 15th, 1999 05:08 PM
In reply to replacing outdoor faucet by m.c. on March 15th, 1999 09:16 AM [Go to top of thread]

5 of 5 people found this post helpful

Moderator Post (s) for this thread:
> Outdoor faucet by Billhart on 06/08/2007

Hi, M.C. This is a relatively simple operation if you have copper tubing. I can't help much if you have plastic but the process should be about the same. The correct name of the thing is a sill cock but we'll call it a faucet to keep things simple. What you will need: tubing cutter, tape measure, coarse sandpaper, torch, flux, plumbing solder, wrench, length of 1/2" copper tubing and a coupling, faucet and Magic Marker.

Turn off the water as close to the faucet as you can, open the outside faucet, then from inside cut the tubing close to the faucet but at a place where you have room to work on it later. Now go outside, pull the old faucet out and measure the length from the back of the faucet to the cut end. Cut a piece of tubing a couple of inches longer than you need, remove the stem from the new faucet and sand one end of the tubing and the inside of the hole on the back where the tubing goes. Now put flux on the surfaces you just cleaned, assemble them and heat the joint with the torch. When the metal parts are hot enough to melt the solder themselves, apply the solder and it will be drawn into the joint. When it has cooled, reinstall the stem but leave it open.

Now measure from the back of the new faucet down the new tubing, less 1/8" for the coupling, to the dimension of the old one and mark it. Cut the new tubing to length and put it in the hole in the wall. Now go inside and sand and flux the inside ends of the coupling and both outside ends of the tubing. Put these together and heat these with the torch. When these are hot enough by themselves to melt the solder, apply the solder and it will pull into the joint. Work on one end of the coupling at a time. Now turn the water back on and check for leaks. Don't forget to go back outside and shut the water off. Now sit back and smile at the conclusion of another successful DIY project.

When you solder, you can not have water in the copper tubing. If your shutoff valve leaks a little, roll a ball of white bread (no crust) and put it in the old tubing coming from the shutoff. This will disintegrate when you turn the water back on and come out the faucet.

To be sure that the new faucet is pointing in the right direction while you are soldering the inside, put a line of Magic Marker in the same plane as the outlet down the tubing. When you solder, be sure the line is pointed in the right direction.

Good luck
Henry in MI

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