My mother is on well water. Her main shutoff vale is quite old and nearly impossible to turn. I'd be comfortable replacing it (probably soldering a new one, or for sure a compression fitting) but don't know what to do to stop the water before this main shutoff valve.
I read something about turning off power to the well pump? Assuming I can figure out what breaker that is, is that all I do, and then drain the lines at a low faucet?