For what it's worth, I'm an engineer for a water purification company, and I've been doing water testing for over 33 years. I routinely drink water from my TC tanks. I sanitize the tanks at the beginning of every season with standard sodium hypochlorite (household bleach) and then flush them. I do have a high quality carbon block filter with a dedicated faucet for a slower flow rate, just to remove the possibility of tasting any residual chlorine, which will not hurt you, but I don't like the taste. I routinely test the water, just to satisfy my curiosity and every time, it's fine. Also, I only fill my tanks with water from my home because the entire house has a water purification/softening system. I prefer showering in soft water, but even if you're just using regular city/ or mud district water, you'll be fine. Just FYI, we routinely test bottle water, just for fun. Some are excellent, some are not, depending on whether or not you're concerned with calcium carbonate. Typically "spring water" does not test as well as water filtered by reverse osmosis. Hope this helps.
