Need to finish a bid for a guy, my first water well involved installation. 1 HP pump pressure tank was running yesterday at 55 lbs while shower and sink were operating. Tank appears to be about 50 gallons Appears to be 1 inch coming out of tank, reduced from 1 inch galvy to 3/4 copper for house. I need to run 6-8 gallons per minute. I need 160 feet of mainline before valves. Owner thinks he has 12 gallons per minute from well. My thoughts: I talked him into letting me tap and install breaker and then testing volume. He will pay for this up front. I explained to him that I haven't installed with well involved ever. He is open to this because 5 other contractors have come out in the last month and have not called him back when he called them to ask them where the bid was. I assume this is because they are not comfortable with the well. I would like to do this job because I like a challenge. If I tap the line I thought I would just hook a flow gauge to the 3/4 copper out of the breaker and test it. Will this work? He seems to think he doesn't need backflow...I think he should have at least a PVB and maybe an RP. Anyone care to chime in on this? Thanks in advance. I also plan to call a well/pump guy in my town and pick his brain, he is a buddy of a buddy.