Oh my goodness, I was going to post pics of my ATO but you have raised the bar way too high! JK, I don't have pics but if I did you have definitely shown everyone up. I have an ATO unit from autotopoff.com AutoTopoff.com and it is mounted inside a 3" pvc pipe. It activates a aqualifter pump that puts out about 3gph. I never have to adjust the water in the sump, I only add fresh water to the resevoir.