That is a bit scary using well water... what if pesticide or some other foreign elements are in small traces in that water? Our test kits dont normally cover them...
Did you check it with a TDS meter yet ?
Still... the quality of the well water is in question... Have you considered using a filter on the water with carbon before using it to pull out toxins?
I would be a bit scared myself to touch well water....not unless i could get a thorough test on it.
I just noticed this part " I also know that the pipes are copper."
Copper test kit and see if you are leaching copper into the tank..if so time to change Water source...
I think the majority of homes in the US are on well water and a septic system. I'm willing to bet that well water is cleaner than most city water systems. Did you know that a lot of unused prescription medication ends up in the city drinking water? Whatever medication the body does not use gets put into the water system through urination. The water is then purified by the city but those traces of medication cannot be taken out.
All in all, I wonder how bad well water can actually be. We had a well tested on a house in November that we were going to put an offer on, and everything checked out except bacteria because the house had been sitting for 6+ months without the well being used. The bacteria problem could be remedied with chlorine. The water had no nitrate in it whatsoever.
Lets also try to remember that most people in the US use well water for drinking, bathing, etc., and not just for their tanks. Am I to assume that tanking a drink out of somebody's fish tank would be better for me than taking a drink from somebody's faucet if that faucet gets its water from a well?
As far as copper pipes are concerned, almost all modern homes are made with them. In fact, I cannot remember when copper pipers were not used and I am 38 years old and my father did home remodeling for a living. If you don't have copper pipes in your house, you probably have lead paint on the walls, which didn't go out of existence until 1978. Can it be that the only successful invert keepers in this country live in homes that are over 40 years old?
Have I made my point on wells and copper pipes?