If you want to drill a tank...follow Bill's original advice and "step" the sumps. I did this with my fuge into my sump under 125. You just need to drill a hole in one ten gall, as high as you can and then throw in a bulkhead with a screen on the inside and a 90 with a small piece of vinyl tubing on the other. I actually did this under my 55 also. I had pictures of this at one point, i will see if i can find them.