Holding tank valve leak
Suddenly our 20 year old camper developed a leak from the black tank dump valve. We were sure it must be the seals, so replaced the valve and seals. Still leaks, so it must be the pipe itself or som...
Forum Discussion
In theory, cracks at the bolt holes should not cause a leak as the holes are just to align the valve housing so the seals are properly compressed in place. Waste should exit through a pipe that is sealed against the valve housing by a rubber gasket that is sealed against the discharge pipe on the other side of the valve housing by another rubber gasket. Only if the crack had migrated from the housing body area to the valve slide mechanism could a leak possibly occur.
Of course, if the bolts of the valve were tightened backwards, there would be no mechanical stop on the head side and that could cause stress on the inside edges of the valve stem. Likewise if the valve rod is not maintained that also could cause premature stressing as excess force and pressure could be placed on the housing when being operated. And, can't forget the Never-Have-Lubricated-the-Valve issue which can cracks valve housings.
Considering how cheap an entire value housing is, I also can't see the wisdom is buying gaskets or blades and not the whole new inclusive of everything housing kit.
Of course, if the bolts of the valve were tightened backwards, there would be no mechanical stop on the head side and that could cause stress on the inside edges of the valve stem. Likewise if the valve rod is not maintained that also could cause premature stressing as excess force and pressure could be placed on the housing when being operated. And, can't forget the Never-Have-Lubricated-the-Valve issue which can cracks valve housings.
Considering how cheap an entire value housing is, I also can't see the wisdom is buying gaskets or blades and not the whole new inclusive of everything housing kit.
