Ok so those ribbed white drain hoses ie original. I have them also. My electrician buddy spotted them and said get rid of those as soon as you can. Seems he's seen quite a few split and fail. Thats next on my list of things to do once we finish up our deck gear and rigging update.
So if your cramming your self down in the aft locker might as well pull out the old drain hoses and find a replacement for them.
I was told to go with the good stuff and not worry about it anymore.
Yeah, I had a thought or two about those stiff old vacuum cleaner hoses. I crimped the lower hose that drains under the water line when I was repositioning it to prevent it from flooding the area while I was working on the thru-hulls. It's probably ok, though. The ends of these are nice - they don't leak and are easy to get off of a barb - but the plastic is bound to crack sometime. I suppose it would be best to replace them with something newer, harder to bend, and harder to get on/off barbs. Once they're on, they hardly ever come off.