I also had one early on and what I did was drill a hole right in the center of the cup top on top.. no bigger then an airline tube. then push an airline tube in with a flexible bubble wand on the end of it, down into the skimmer wrapping around the cone, then hook up a small air pump to the end and dont forget to put a control valve in so you can control the air coming through the airline tubing.. its just that the maxi jet pump doesnt produce enough bubbles for the skimmer to function properly.. after I did this it really wasnt a bad skimmer..