SPRINKLER TALK FORUM - You Got Questions, We've Got Answers

facebook images don't generally work - we have been recommending tinypic for hosting images to post to these forums, but they might be having problems - try googling "free image host" and try one of the options you get. In any event, from just the words, I would think in terms of a 1-1/2 nipple on the inlet, threaded or glued into a 1-1/2 elbow, and from that point you connect the dots to your 2-inch pipe. The idea is to avoid too much trapped air in the suction line.

"A" is more uniform, especially if you have room for the sweep elbow. Unless your flows are close to the capacity of the pump, you don't have to worry too much about suction plumbing. Most of the layout advice applies to higher flows.

You need to change the flow on your sprinkler zones. 35 gpm is a lot to expect from a 1 HP pump. The CJ101 is something you would be operating nearer to 20 gpm, in order to get the output pressures that would justify choosing a multistage centrifugal pump.

If the pump curve is showing, you will see the 100 foot mark on the output curve is at less than 30 gpm. 100 feet equals 43 psi, but that is not output pressure, since you have to account for the height of suction lift and friction losses in strainers and check/foot valves. 27 gpm at 40 psi might be more realistic, and that's before you have to subtract for the strainer self-cleaning.