Tony,
One of a couple of things could be done,
1. Find a tree whenever possible to reduce the load.
2. Use the minumum possible amount of water when flushing(sprayer works
best)
or you could try to use number one to take care of number two.
3. A larger tank is possible by making the tank longer in the direction out
into
the closet area which will require taking out the wall between the
bath and bed to get a longer one installed.
There's a company out of Washington state that can make a new tank, I have a
copy
of the drawings that were sent to me by someone that did the samething for a
1966 GT.
They use the same bath.
Paul Waddell
WDCU Past Prez
-----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