I would guess that connecting the tanks might me difficult to do. I expect that if it were easy to do, that would be the least expensive manufacturing option which is what the factory would have done in the first place.
My Flagstaff has a black water tank and a grey water tank and two separate drains, I have a wye connection drain hose that I use to hook up the drains. Everything but the toilet is plumbed into the grey tank.
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Jerry & Sally Martire
Culpeper, VA
2008 FR Flagtstaff 831RLSS
2004 Silverado 2500HD diesel
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