I had the 1000gph mayfield pumps on these
http://www.shopping.com/Johnson-Jabs...ator-Pump/info
but anything with piping that size will do for drain
for fill, I had a barbed fitting..I still have the fittings if you need them
I have sold the pumps
smaller ones are round (tube)
48" long
12" wide
12" tall
larger ones are more square (rectangle). I have the outer cover for these
48" long
15" wide
14" tall
so 200-300lbs for the smaller ones and 300-400lbs for the larger ones. Fly high once told me that you can bulge a bag this size out and get nearly 100 more lbs