what's the best way to store tap water? plastic pop bottles? white plastic bottles? glass bottles? something else? bleach? chlorine? salt? something else? rotate every ... ?
I've been storing tap water untreated in 5-gallon water carriers. The water still smells and tastes good after six months. I've read that if you clean them well, 2-liter pop bottles work very well.
If your container is clean and your water is clean, I don't know any reason why rotation is strictly necessary.