Originally Posted by mike54
I was told my new Rockwood 8219SS is plumbed with shower going in the black tank I haven't decided if it's a good thing or not.
Not a good idea for sure!
This will reduce your black tank capacity to 3 or 4 days (or less) instead of 10+ days...a huge PITA if you're on a site without full hook-up for two weeks.
If the grey tank fills, I've dealt with that by emptying with some pails and have even poured them into the black tank on a 5 day weekend. If the black and grey are mixed, it's using a tote or hauling the rig to the dump station.
I can't believe that any manufacturer would plumb it this way and actually think that it would be acceptable!