The black tank in our Argosy is only around 10 gallons or so.
Our "trick" to making it last is to use public restrooms as much as possible
:-)
Dave
-----Original Message-----
> Tony,
>
> Perhaps someone has found a solution to your problem. Back when your
> trailer was made it was not expected to be used for more than a couple of
> days at a time without dumping. If you were boondocking somewhere you dug a
> "gopher" hole to empty the tank into. The tank on my '60 Overlander is about
> the same size as yours. It sits above the floor, not below it as in newer
> trailers. With very miserly water usage while flushing it will last 3 or 4
> days with the 3 of us using it. By next summer our youngest will be potty
> trained, so I figure that our tank will only last 3 days tops. While parked
> at International we are always hoping for two dumps!
>
> BTW, I am thinking that if your tank overflowed outside the trailer, then
> you have a leak somewhere that needs attention.
>
> Scott