First turn of the main water shutoff or if there is one closer that’s OK too. If the leak is in the middle of the pipe then cutting out the ‘bad’ section and sweating in one coupling or two couplings and a short piece of pipe will fix it up perfect. If it leaking at an elbow then a few more parts are needed. The elbow will need to be cut out then a coupling to a short piece of pipe, then the elbow, then another short piece of pipe to another coupling. Some times you can cut the pipe real close to the elbow on one side and just move the old pipe to fit into the new elbow. Don’t do it if there is any tension though |