I just realized that I can fit 1/2-in hose over my jet bottle washer and give it a really thorough rinse after cleaning and before sanitizing. Perhaps I’m the last person to figure that out, but it was a great discovery!
http://www.pondplanet.com/image/cache/data/md11060_1-325x300.jpg
I have been playing with a submersible pond pump such as this. I picked it up at Home Depot for 25 bucks. It has an automatic shutoff when taken out of water. This has been a real time saver for hose and chiller cleaning, rinsing, and sanitizing. I would use with GFI circuit only.