Yep... the dealer should have known better!
BTW, I usually back-flush the blackwater tank with every drain until the water runs relatively clear (a clear plastic connector to the hose lets me see the state of the drained water). Even though the back-flush runs until clear, we always dump 2 large bags of ice down the toilet and let the ice slosh around and melt in the black tank on the way home on our last leg. I ave a toilet in the barn next to the trailer shed, and I can connect my dump hose into the clean-out on that sewer line. This gives me the luxury of being able to back-flush again at home.
There is always at least 10-15 gallons of sludge that comes out of that supposedly clean blackwater tank until I get the back-flush water running clear after this treatment.
Anyway, the ice treatment works!
Jim & Kathy
2012 Crusader 290RLT TE, TrailAir flex pin: 2012 Toyota Tundra 5.7 SR5 Dbl cab 4X2 Tow, 4.30 gears, RideRite air, TRD cold-air induction & dual exhaust: Reese 16K Slider: TST tpms
Miles towed to date: 18,950 Nights camped 192