It is simply... You need to look for a mainline shut off near or around you main line going into your house. there should be some kind of backflow installed, at the backflow there should be a manual shut off handle. If there is no backflow then look for a quarter turn ball valve or gate valve on the mainline going into the house. If you still cant locate a shut off then go to the street and shut it off at the city main/meter for your house. Once the water is off dig up the valve box, determine t...
If your still needing help, the best thing to do is go down to lowes and by what is called a "Gator Bite" fitting. these are great for homeowner with out a lot of experience with copper. the just push together and your done. They hold great. as far as getting the old one off all you have to do is cut the up right pipe on the discxharge side and spin that peice of copper off, after that hold the male adapter at the house with channel locks and spin the backflow off. That easy
