I've had the skimmer running fine for a year, when a couple of weeks ago it started filling the collection cup way too fast with almost completely clear skimate, and filling the tank with micro-bubbles. The guys who run CPR's bulletin board tell me that something I added changed the viscocity of my water, and that if I stop adding whatever did this, and did a water change it would fix the problem. Trouble is I haven't changed my additives, and after several water changes, the problem persists. I added the in-chamber bubble trap and that didn't stop the bubbles either. Anyone have any ideas?