Skimmer Cup Rapidly Overflowing

I purchased the coralife super skimmer 65gal in february and have had no problems. I clean out the cup weekly, never overflows. I clean the pump every 3 weeks. On saturday I dumped out the cup and rinsed it out like I always have. But when I plugged it back in, the collection cup filled up almost immediately with white bubbles and clear water. Normally i could see through the big main chamber, under the cone where the bubbles first come out. But now almost the entire main chamber is filled with bubbles and i cannot see through it at all. I have turned the water level adjustment dial very slowly to the closed and open positions and still cant get the collection cup to stop filling up so fast. I’ve been reading forums about this and have tried cleaning the bubble diffuser and pulling up the black sponge…nothing seems to work. One forum said that i need to adust the "Needle wheel adjusment valve (above the water pump)". I don’t seem to have this on my skimmer. I looked up the coralife instruction manual pdf file and it has a section in it for the needle wheel adjustment valve, but my inst. manual that came with my skimmer does not have this section.

Can someone please help me?

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