Hop said:I had to make a few mods this morning before work. I was having a substantial micro-bubble issue. Oddly it was not from the skimmer though. I think it was from the 20+ feet of drain and the intake for the return pump was cavitating, causing a small tornado in the water and sucking in air. I replaced the intake screen with a T right now and will be adding a filter sock or something on the drain when I get home tonight. We'll let it run a few days after that and see if it solves the problems!