Here is what I have come up with. Tanks are 24 x 30 x 24. I'd also like a spot for the JG float valve drilled in the top edge of the upper sump for the fresh RODI. Bulkheads are 3/4" I'd want tops to keep contaminants out but would need it to be easy to add salt (to the bottom reservoir). Also there would be some level sensors and piping coming out of the top of the bottom sump, sending clean SW to the main tank. I'd want styro on the bottoms of the tanks as well.
