Here is the orignal thread.
http://www.trailmanorowners.com/foru...read.php?t=320
I have done this - it works well, albeit slowly. It would go a lot faster if larger hose were used. IIRC, the drain hose out of the tank is 1/2" inside diameter, which is plenty big for a fast fill. But the added fittings end up being only 1/4" ID, in order to fit inside the existing hose. With a little effort, one ought to be able to use LARGER (not smaller) hose and fittings. But I haven't done it ...
Bill