A 2" pump on 1.5" hose will work fine, you however will not get as much flow as you would with 2" hose because of line friction. Just a guess, but you would actually get quite a bit faster flow by just using the 1.5" pump with 2" hose because of less line friction.
Years ago I grew strawberries and my irrigation pump was a 3" Hale fire pump, but the irrigation company had me use a 4" suction line and a 4" pressure line from the pump until after the first two legs off the mainline for better flow. At the time they told me I would get the necessary 60 PSI pressure on almost 2x the sprinklers by having the 4" pipe for that distance to 2 branch line off.
Last edited by maple flats; 03-25-2020 at 09:24 AM.
Dave Klish, I recently ordered a 2x6 wood fired evaporator from A&A Sheet Metal which I will be converting to oil fired
Now have solar, 2x6 finish pan, 5 bank 7x7 filter press, large water jacketed bottler, and tankless water heater.
Recently bought another Gingerich RO, this one was a 125, but a second membrane was added thus is a 250, like I had.
After running a 2x3, a 2x6, 3x8 tapping from 79 taps up to 1320 all woodfired, now I'm going to a 2x6 oil fired and a 200-425 taps.