I bought a "new-in-box" 8 gallon Liquidator. Got it Monday the 24th, Installed it Monday the 24th. It's just as easy an install as the posts here lead you to believe.
When I first installed it, I could get a flow of 4-1/2 (4-1/2 what, I don't know??)
I set it to a little over 1 and ran the pump my normal run times (Two (4) hour sessions per day) It IS holding the FC at 6 so all is well. Me being the kind that can't leave well enough alone, decided to see what would happen if I left the control valve wide open. Well guess what??? Now I can only get the flow to a little over 2. Yeah, I understand that if 1 is good enough then more than 2 is not needed, but, you get the picture.
I'm blaming it on the fact that I cleaned the skimmer sock. That cut down the pump suction head and therefore reduced the flow out of the Liquidator. I may throw a second skimmer sock in there this afternoon to test my theory.
I don't like the check valves either. When I first got it I tried to blow through them and there is quite a bit of resistance before breakaway. It's almost as bad on vacuum. Because I have an above ground pool I can't eliminate it, so I'm considering increasing the tubing size following Rabbits thread.
As the title says, Wish me luck.