Here's the basic installation information:
18' x 52" above ground pool
Hayward Power-Flo Matrix Pump (1HP)
Hayward S166T Pro Series High Rate Sand Filter
3 - 4x12 Vortex Solar Panels
approximately 200' of 2" PVC round trip from filter/pump to panels and back to the pool
Rise to roof from ground is around 12'
There is a check valve just before the three way control valve connected via a union and another check valve on the return from the roof, also connected via a union.
When I switch the three way control valve to route water to the roof panels, the pump bogs down and water does not flow. If I switch the three way valve to route water back to the pool, everything returns to normal (pump does just fine, water flows to the chlorinator and back to the pool with normal pressure.)
If I disconnect the second check valve to see if there is any water flowing, I get no water flow.
What am I doing wrong here? I'd really like to take advantage of the hot sun this weekend in Ohio to get my pool above 70 degrees!
