Thanks for the update. My well pump is reaching the 20 year age and I am wondering when it is going to give way. Very interesting read. Thanks again for posting.
Back in the day I worked for a fire fabrication company, they are used a lot in tenant improvements and if you needed to tap a line to get another head in the system or if the designer screwed up and forgot one, it was fun installing them on a hot/wet line.... you would put a nitrogen wrap on both sides and freeze the water and do the install in the middle then let the wrap melt all without draining the system