[DutchmenSport]

OK, I'll confess. We wash dishes in the kitchen sink in a tub. After washing and rinsing all the dishes, the dish water gets flushed down the toilet to add a little more water to the black tank, and to put some dish washing soap in there too to help clean it a little.

Now, it's not so bad dumping the kitchen sink water into the toilet .... as long as there is nothing under all those soap subs. (now you know the rest of the story!)