Yeah, I got my AC110 too, but part of the intake tube is broken. It is split laterally along the upside-down "U" part, which lets air bubble in. I put some tank silicone on it and got most of the leak plugged, so the filter functions. It is just not running at quite full capacity as air still gets in. I'll write the company today to see if they can hook me up with a new part.
The tank is looking great now, a lot of brown algea starting since I took the plec's out. Ammonia tests as not registrable.
So the filtration on the tank now consists of HOT Mag, Magnum 350, Xp3, AC110, and a sponge powerhead. I moved the cascade over to my jag tank.