I just had to flush my well to sanitize it. I now have no cold water coming out of the tub faucet/shower, just hot water. I fear that the unit may be clogged with sediment that came through the plumbing when I flushed the pipes.

Is this an easy fix. I've been playing phone tag with a plumber. If he does show up I want to be ready for him. I assume the part inside the unit can be flushed of the sediment. What do you think?

It can be a difficult fix if you are unfamiliar with it.