I had my Nyos 220 well tuned but had to turn it off to repair the stand it sits on in the sump. When I turned it back on, the skimmer was overflowing. I opened the water and air control knobs all the way and took the collection cup off, but the skimmer has been over flowing for 5 days. If I close the air control knob at all, then it overflows with huge amounts of bubbles. It is about 8" of water. HELP!
Thank you.
Thank you.