We do travel with a small amount of water in the fresh water tanks. Enough for stops along the way.When we are at a location with hookups the tank is drained. We never considered leaving water in the tank for long periods of time particularly in hot weather. Does not seem like a healthy thing to do. We do sanitize the tank at least once a year sometimes more.We do not boondock. We always carry a couple gallons of bottled water for drinking along the way.
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