On the black tank the dump valve connects directly to the tank, slip fit and held in place by a hose clamp.
The grey tank is the same but with a ABS plastic pipe fitting into the tank.
How do I seal the dump valve to the black tank and the ABS pipe to the grey tank. I know there not glued but the hose clamp does not seem sufficient to prevent leaks, I could be wrong it's happened once before.
Parts needed: Fan for roof vent or whole vent fan assembly, vented catalytic heater.
My blog for the 1975 Tradewind restoration
, Has not been updated in a while but I am still working on it.