Yeah, 2 times more grey than black was my thoughts too. At first I thought it must have been a misprint on the website, but I saw a post on here that confirmed only 45gal. A fellow from the factory said that they could only put one grey tank in because of the triple slide configuration.
We really like the floor plan, but will be boon-docking most of the time (only for a few days at a time though). I don't know if only having half the grey capacity is worth giving up on this floor plan. How bad would it be to just let the grey water drain on the ground by leaving the valve open (if we're not close to anyone else)? What about leaving the cap on the sewer drain and when the grey gets full, flush it into a less than 25% full black tank? I'm trying to figure some way to make this work.... Thanks for any input.