Kodak Photo Flo - 470ml

I've been using this for a few weeks now and it really does cut down on water spots on my negatives. A tiny amount goes a long way in the final rinse, and my film dries much faster without those annoying streaks.

After a whole session of rinsing and rewashing, not a single dried water spot or streak showed up on my negatives, even in our hard water. The solution mixed easily and one tiny capful was plenty for a full tank, so this 470ml bottle should stretch quite a ways.

These 470ml bottles last me a solid year of developing, and that concentrated formula really does stop those ugly drying streaks dead in their tracks. Just a few drops in the final rinse and my negatives come out spotless every time.