Installing a system, and I will be using 2" Schd. 40 PVC main line. I don't utilize PVC that much, generally all poly. First off, I'll admit I am opening myself up to some eye rolling here, due to lack of knowledge. My question, at least for now, is this: Are there different fittings for use in pressure system vs.
DFV? I see couplings, elbows, reducers, etc. and some ...