How to replace an irrigation sprinkler system shut off ball valve, Febco 765 back-flow preventer vacuum breaker. Changing a damaged and leaking shut off valve. Any Brand sprinkler system.
Do they make right handed backflow preventers? The pipe leading to the sprinklers is to the right of the pipe coming out of the house and so the shut off valve sits against the house because they installed a left handed one backwards. Also, what if your state requires that only a plumber with an ASSE certification fix your backflow.. I mean they won’t know.. so who cares right? or is there a permit process?
You can use the same one just turn the shut off valves the other way, but has to be taken apart for adjustments. I think most states require a permit or license plumber to install back flows but not for repairs.
You are putting too much force on the existing piping. Support the existing piping with a second pipe wrench or another tool. What are you going to do if the pipe attached to the spigot breaks off or becomes compromised inside the wall or house?
Hello. I wouldn’t say it’s too much force. Pretty much threading the new valve on, and just tightening it enough with the wrench. One Inch copper pipe is pretty heavy duty. I would be able to feel if I was going to twist the pipe or do damage. Then I would grab a 2nd wrench. Still have to be cautious. Most times, I do use 2 wrenches when there is a shark-bite fitting inside and the pipe starts spinning. 3/4” I just remove the whole unit and use a vice grip, then solder it back onto the main line.
I did let it cool down for about five minutes or so naturally. I don’t want to cause any stress cracks. Usually, by the time I put away all my stuff away. I start heading inside and then turning the water on.
You can use a slip coupling (Sharkbite) like I mentioned in the video. They’re not the best for permanent connections, they have rubber o-rings which dry rot and cause stress cracks over time.
