I use the tank water for washing and dishes, but stick with bottled water for drinking & brushing my teeth just to be safe.
I always add roughly a tablespoon of chorine bleach when filling my 40 gallon tank and I keep it fresh by not skimping on my use of tank water. I pretty much follow Peggy’s recommissioning procedure every spring. Without the vinegar though. Just an extra fill and flush of the system.