Originally Posted by Big1
Okay guys and gals the wifee and I are out camping in ours new Denali and we love it. We are trying to conserve ours grey water tank but it's only 42 gallons tank, so my question is can I add a second grey water tank to my RV?
I have look into getting a 15 gallons portable tank but in the mean while do you know if I can add it to my Trailer, I have a second button for the gray water but it's not hook up to anything, thank you for your comments.
Technically I'd say sure you can add an additional grey tank.
I've dropped (and re-installed) a black tank on a previous TT, and there was nothing special or rocket-science about the tank. The tank simply spanned between the two main trailer frame rails, and was more or less just held in by gravity, and an additional cross member that prevented the tank from sliding fore or aft.
A very handy person could install a second tank if there was a spot for one. And the plumbing would be an easy matter as well, the manufacturers just use simple ABS for the 1-1/2" plumbing runs.
The only tricky part would be how to gang them together, since the inlets are generally through the top. I'd actually connect a second grey tank to the OUTLET of the first, and essentially install a TEE to the dump valve. This ofcourse would require a vent for tank2, to allow the head of air to evacuate while the tanks are filling "equalizing." Just run a vent line from the top of tank 1 over to tank 2.
Would it be a fun project? Yep. Would it take a month of sundays? maybe.
Would you ever want to entrust a dealer to do it? not on my best day.