aquamaxx skimmer

I have an Aquamaxx 1.5 HOB for my 50gal. It was well-tuned and churning out sludge on a regular basis - I'd dump the cup once a week. Last few weeks... nothing! I tuned it way "down" to the "wettest" setting, and still nothing! The skimmer seems to be functioning normally- lots of bubbles...

Pickup only Bristol RI. SOLD: Have an Aquamaxx HOB1 skimmer $50. Works like a charm. However, I cant find the plastic screws that hold it onto the tank. SOLD: Tunze EcoChic 8831 (waterproof) $40. I just bought this maybe a month ago. Also will give you a CFGrow 100watt refugium light for...