What is the water storage tank for? We've never needed one, and the only time I've heard of someone getting one was for trapping rainwater or they were a farmer.

I've lived with well water for all of my life except my college years and a few years after. In all that time, the only maintenance that's been needed has been to replace a water pressure tank (not a difficult job unless you've never seen hand tools before) and adding salt to the softener once a blue moon.

My sister in law had to get a new well put in, but that was because it needed a new well pump and the plumber she called told her he couldn't work on the existing one because it was out of code and her well wasn't grandfathered in.