I am in the process of setting up an irrigation system and was planning to do the following coming out of the backflow preventer (Febco 765-1" PVB): 1" vertical copper pipe going into the ground ~12 inches deep + soldered copper elbow + ~6" of 1" copper pipe away from the house + female copper thread adapter + PVC male adapter to connect to PVC mainline. (note irrigation will be blown out each year)
Are there any issues with having the copper elbow fitting be a soldered connection and buried in the dirt? I am planning to have the copper to PVC transition accessible from a valve box since I will also have a tee there for the mainline along with a few PVC valves.
Are there any issues with having the copper elbow fitting be a soldered connection and buried in the dirt? I am planning to have the copper to PVC transition accessible from a valve box since I will also have a tee there for the mainline along with a few PVC valves.