freezing weather

Right or wrong: I always fill my fresh water tank at the campground, after checking the taste. I feel that this process of cycling water through the tank and pump helps to keep the tank fresh. I also get better pressure at the kitchen sink. For some, unknown reason, the line pressure reduces through my filter to the point that I never have good flow in the kitchen.

I also use Clorox once a year with about 20 gallons of water, travelling for a hundred miles or so before flushing.