When we were in the Northwest this summer we suffered some equipment degradation. Still had half a handle for the all important black tank drain valve, and a pair of vice-grips in the tool box in case the second half of the handle failed. It was clear that I would have a maintenance project when we got home.
Knowing what I was facing, we did an especially good job of flushing and cleaning the tank before we left our full hookup site the day before we got home, and then put the toilet off limits.
It really was a simple, 15 minute job, made much easier because unlike Nina, I didn't have neighbors watching my every move. (Seriously, check out Nina's seriously funny post from a couple years ago.) One bolt was a bit challenging to access, but not a big deal. The new valve has an aluminum handle. Seems much less likely that part of it will break off.