There are various techniques. The simplest is to cut out a section of plumbing pipe and slip inside a stab-in tee (still left). SharkBite is a single widespread brand of stab-in fitting. This process doesn’t call for soldering, which can be a giant time-saver. But Examine with your plumbing inspector https://replace-water-pipes-in-ho08753.wikievia.com/10314222/examine_this_report_on_pex_repipe