Ok, now I know you are all going to go, eeww, but I don't have any rituals, as far as the water goes. When I drag her out of storge, I close all the valves, screw the plug into the water heater, fill the tank and take off. I dont' use the "pink stuff" in the fresh side. only in the drains.
From then on, it stays full of water until sometime in late October.
I blow out the fresh side with compressed air. I hate the taste of "pink stuff".
I use "city water" so I believe the resident clorine will do it's job.
Never had a problem, never have I been ill, and I don't have to taste "pink stuff" Yuck.
Now, for the rest of the story......
I don't drink too much of my coach water, I bring bottled water, for thirst.
coach water is for washing, bathing, and brushing teeth. hehe and coffee, when you run out of bottled.
I do have one of those faucet mounted Pur water filters too.