I had the same problem. Someone told me that once my skimer "breaks in", the bubbles should cease. I bought a big piece of the black filter media, and cut it to fit. I had to mess around with it and cut several pieces..(thin, thick, long, short) until I found one that worked. It works pretty well. Sometimes I get micro bubbles, but they spill slowly and go right to the surface. They dissapate on their own in a short period of time. I take the sponge off and rince it pretty good about every week or two. I also contemplated hooking up a spray bar to the spill spout of the skimmer. I still may try it. If I do, I'll let you know how that works out for me.