This thing is really kicking some butt but it's kinda picky. As soon as my wife starts frying something in the kitchen the foam collapses for at least an hour. Also I put in a new filter sock on the tank and the skimmer went nuts. I had to almost completely block off the air to get it to quit overflowing. I guess maybe there was some soap or something on that filter sock but I pulled it out of the pile with the rest of them. I'm not too concerned with any of this until it breaks in though, gonna give it until Monday and then start trying to fine tune it which will be a blast considering I have a ball valve on there instead of a gate valve.