Anyone have any thoughts?
Just installed a Rainbbow 320 and barely getting a trickle of water flowing in to it.
(Have the see through version and moved the input to the cylinder to the top. )
I won't normally use it (using BBB method) but want it for backup when we are away.
The only way I see any flow is with the metering valve all the way open and the pump turned up to 3450 RPM.
The 320 is in the middle of a straight run of 2" pipe from the filter back to the returns.
I normally run the pump at 1250-1750 RPM.
How much pressure do I need to push water through the this thing?