Lunker
Unregistered
Its copper coming out of the house, Im not on PVC until it hits the lines under the lawn. The copper comes out of the house and makes a loopBy the time you go through the removal of an RPZ and covering up the union ends, you could have just as easily winterized it in place.
Forget the RPZ at this point. You almost certainly do not have enough pressure to allow for an added RPZ to take away an additional 10 psi of system pressure.I currently have a PVB backflow preventer, but I am looking to install a fertilizer injection tank so it seems I need to go the route of RPZ. I had one plumber install the PVB which worked well, but then I didn't winterize it and it ended up cracking. I had another plumber install the second one and I don't think they knew how to test it. Who would test a RPZ if I installed one? An irrigation company or a plumber?
In looking at the R value factors for the insulating pouches, I wouldn't feel comfortable leaving the RPZ out in the cold even with such a pouch. If the unit is removed for winterizing each fall, should it be tested each spring?
The testing equipment appears to be very expensive. Is this something the average homeowner could do?
Testing an RPZ is entirely outside the reach of a homeowner, when it comes down to it, because there is a paper trail involved in the testing of safety devices like an RPZ. A homeowner's word counts for nothing at all. The word of a licensed tester of backflow preventers counts a whole lot more.................In looking at the R value factors for the insulating pouches, I wouldn't feel comfortable leaving the RPZ out in the cold even with such a pouch. If the unit is removed for winterizing each fall, should it be tested each spring?
The testing equipment appears to be very expensive. Is this something the average homeowner could do?