When possible we pour a full 3gal bucket of fresh water through the Thetford after dumping to make sure everything is flushed out. Paper left in front of the slide valves can build up in the far side of the gasket after several repetitions and block the valve from closing. The same thing can happen if the valves are not left open to completely drain. This would happen when partially dumping into a container smaller than the Thetford.
__________________
Frank
Former 2002 TM2619 Owner
2005 Toyota Tundra AC 4X2
|