[vintagemike]

After 2 nights of working to get the rusty screws out of the dump valve I was finally able to remove the valve.
The problem with my leak seems to be that the square flange that the valve screws to is cracked and falling apart at each corner.
I think that as the screws rusted they also expanded and split the plastic.
On this trailer the flange and valve are directly below the tank pointing straight down. There is no piping between the tank and the valve.
SO THE QUESTION IS... is that square white plastic part that the valve screws to part of the tank or is it glued to the tank?
I do not believe this square white flange thing to be repairable as it is quite brittle and parts were breaking off easily.

I hope this does not mean I have to replace the black tank....

Vintage Mike