Hi yes another VRV question .
So i have a VF intellflo ,oversize cartridge filter , SunTouch and three Heliocol SunX SX40 panels , from the pic you can see the VRV is at the top of the layout .
I have to run the VF at 45GPM to close the VRV .
I move the VRV to the opposite lower corner after reading Hot2suns good site .
VF still needs to run at 40GPM .
Installer says there might be an issue with air being trapped at top of panels .
The flow for the panels is suggested at 4GPM each so 12GPM .
12GPM flow is to low to run the pump at but I think 40GPM is to high for efficiency or is it ? .
Oh and plumbing from the gutter is 1.5 inch , gutter down is 2inch .
The outlet pipe is a thick wall pvc to cope with the pressure .
The red handled ball valve is to allow the panels to drain .
Also any tips on where to mount the sensor ? The panels face east so morning sun .