Might be doing something wrong here, but here's my setup: 2600' of 1/2" pvc on a 20 to 30' high roof, somewhat steep. I have nothing other a Y valve splitting betweed pool jet and roof. Pool is AG. The home water pump (the well pump) can prime the coil and fill it with water, but the Splapool 1.5hp doesn't push strong enough to keep it going even when primed, seems like the water is returning towards the pump even. I see other people making this work with 1hp pumps, am I missing something? As for pump suggestions, I would rather use 120V.
Thanks for your help