O.K., I couldn't find the thread I was reading about how long iodophor lasts. If someone finds it, move the link and we can cut this thread. In the mean time, I thought this was pretty interesting.
How long it lasts diluted, or concentrated? I've often wondered if you can mix up 5 gallons and some one day, and use some more the next day as well, Or if you have to mix it fresh each day, as with 10% bleach.