Re: destroyed impeller
Thanks, sounds like a fairly straight forward project for this weekend, I will go with eventually removing the end plate (I may try the vinegar flush first), it is only 4 bolts (it would be a good time to put anti-seize on them as well, as I do everything I take apart and put back together.)
I still like the idea of a valve with a sensor built in, even if it just went to a light on the panel, you could tell by a quick look what was open and what was closed. Instead of the guessing game, did I close that one, well lets check.
Speed seal look like an interesting product, but the damn faceplate screws are on the engine side of the pump. I guess they have to be because the pulley is on the front side. Anyway if the impeller did not break down by running dry that would be a plus.