wintoid
Back to film
I can't imagine why anyone would dilute large amounts of it and hang onto the stuff.
One of the "silver bullets" for me was realising that I could keep dilute Photoflo for a few months. I can't use tap water for the final rinse without getting all sorts of cr*p on my negatives. I was using 250ml of distilled water in the final rinse each time I did a film until I realised. Suddenly my distilled water usage went right down. It's not so much the expense, but storing large quantities of distilled water just for the final rinse was a pain. Now I keep much smaller bottles around, which helps with the marital bliss. It's also less wasteful, of course.