1 inch feed and meter. I was really surprised the get that type of GPM.
Ok.. here is my question, I do live in a freezing area (around Chicago), so I was leaning toward using polypipe, but then I also read somewhere (I think it was the Rainbird installation stuff) that the polypipe will have about 2-3 GPM less in flow for 1" then the 1" pvc. can anyone confirm this? My house has about 70 PSI and the flow I tried doing the 5 gal bucket test came out to be a little under 30 GPM. Will using poly really hurt me at all? Thanks
