We have a well with VERY hard water, so we have a water softener. This makes for super water for washing, but not for drinking. We are left with a very salty aftertaste. We do use it for cooking. We have a 5 gallon water dispenser, which we get our refils from our local grocery store. They have a reverse osmosis dispenser, which I am guessing starts by using local tap water. So...does that mean we drink tap water "by osmosis"? LOL We do use water bottles to take with us when we go out. We have the kind made from heavier plastic that can be reused again and again...and we fill them from our dispenser.
Patti