i have a new size im going with 40in long 20 in wide and 9 inches tall i was thinking a submarine type system i have a bunch of pvc laying around the house 5 inches around i think i was going to build tanks like the gato class fleet boat with open intakes on the bottom and vent valves on top of the tanks so when you open the valves water comes in the tank and when shut water wont come in and when done have a battery operated compresser hooked to the tank so you can blow the water out