i just spent 3 hours equilizing the *BEEP* pressure for my return using a rio 2100.
3 hours up and down by the milimters for my 10g sump.
i use a 3/4 pipe with a 1/2 pvc
elbow. and it was too much for the pump to even off
so i had to plumb the pipe down a pinch with a adapter
then the valve on my rio is super tight and just a millimeter at a time to adjust it mega hard.
anyways i went to the store after i equalled the pressure last night and got a adjustment valve for the intake syphon and i guess the foam in the sump moved a bit and it was off again so i spent another 40 min making sure it wasnt off for i work a 9 hour shift and didnt want a burned out motor or a flooded house.
is there any other way to perfectly and easily match ?