The dreaded "tank problem"s.... I am having trouble with both my gray tank and my black tank. 1) My gray tank is continuously clogged. I have to take a plunger to it about once a month to empty...
I always leave my grey tank open until a day before needing to dump the black tank. After dumping the black, I dump the grey tank to flush everything on down the hose. Then, I leave the grey tank open until the next time.