BFL13 wrote:
If you had the clear elbow to see what is leaving the black tank into the sewer hose, AND a tank sprayer, you would see that on the second go, there is lots of "stuff" (lots of toilet paper included) going by the window then too. You would never again say that the black tank only needs to be dumped once.
Of course it only needs to be dumped once if you are in a hurry, as long as sooner rather than later, you get it properly flushed out. If you don't, eventually you will be trying to unclog the whole thing by poking something down the toilet, and all that kind of fun. :(
So I've been somewhere around 14 years with "only dump once". I'm of the opinion I don't need every little scrap of TP out of the tank - I'm not using it for storing drinking water, I'm using it to store more chit next trip out. 5 gallons of water sloshing around in the tank while I'm driving will take care of any remnants remaining just fine.
