P.O.S. Drainmaster valves

As Cedar Creek used them (before they found out about not mounting them sideways and well after drainmaster put the warning on the unit itself as I was told which is why CC dropped them) to facilitate where they could mount the tanks and run the plumbing I'm stuck with them but this is the fifth time this one valve has failed, on the black tank of course so I'm just going to do it myself but drainmaster is telling me I need to buy new gaskets and this and that and after throwing out $150 sheckles to swap out the open/close switches which should have been a warranty replacement and as unreliable as their product is as I suppose they need to make all the money they can while they can.

Red Green:
We now come to the part of the show called
"If it ain't broke, you're not trying!"