[C320-list] commissioning questions re: da plumbing

[Moondancer5 at comcast.net]

Hi all, I did not get to do the winterizing myself due to work problems, the marina did, and I am trying to do the water systems myself now, and have a couple of questions. Thank you in advance for any help!

The manual says to add water to the fridge and check the drain, but I don't see where to do either. (2006 320 hull 1089; not the mark II). I also couldn't find info in the manuals whether I need to do anything to the a/c unit before running it. The water tanks and shower I should just flush out with fresh water and a "glug" of bleach, right? (According to the marina.) And then reflush and put a little vinegar in to help get rid of the bleach smell and don't drink it anyway, correct? Am I missing any water-in-the-boat-related activity? The marina said I didn't need to do anything to the head as the antifreeze would just get flushed out with the next pumpout, is that okay?

It was a little distracting when the boat was splashed and water started to flow in via the prop shaft and the electric bilge decided not to work at all, so we are a little behind in getting the rest of our act together. 
I'm wondering if having a sinking house is better than just 2 sails and an outboard...

Thank you,

Susan