uggh, finally got mine pumping water today and found that i cut the slot an 1/8" too long nad it blows water out the hole. Also hadnt thought about it until I put it in my fuge but the lights dont fit inside the fuge with the scrubber. my water level in my fuge must be alot lower than most because I notoce most people have thier lights just above the rim of the tank and mine would have to be about halfway under the rim. Which also may not be good in a power outage. Ugg i guess I'll have to redesign my baffles to raise the water level in my fuge and redesign a new stand for the ATS. Shoulda thought of that before I cut up all that plexiglass.
All of these things were ones I had to consider when building mine. Luckily, my sump is large and extremely simple, which allowed me to get away with a "dirtier" retrofit.