Originally Posted by Oceansidefish
OK no worries... So I am going to be maybe even a little over explanatory forgive me. I have an overflow that drains into the fuge, water gets sucked up by the pump and into the skimmer it goes (AQUA C rated for about a 250g or more tank) out of the skimmer into the middle section with sand over the waterfall and then once more and back to the tank. Well I can't seem to get the 1st and last chambers to stay at a consistent level. I adjust the flow in one place and the other fills up too much, adjust for that and I don't have enough water in the 4th chamber and my supply starts sucking air. I am going to kill someone if I can't get this under control.
Sounds really complicated, but I'm sure to you it's not, since you are looking at it. Not sure, but sounds like the problem might be in the middle. You say "waterfall". Is water struggling to get past this chamber? Water should be higher than the wall, for free flow, not waterfall. Is this a new setup, or did it work before and is just now having problems?