Quote Originally Posted by pdeeh View Post
What surprised me about the instructions for Pyrocat-HD in glycol (as per http://www.pyrocat-hd.com/html/mixing.html) is the suggestion that the KBr and metabisulfite is introduced into the glycol as a solution in water - I'd have assumed that this would defeat the object of using glycol, which is to keep water out of the stock solution, isn't it?

Perhaps Ian or Gerald or similarly chymical gentleman could fill me in on why it seems to be OK in this case?
And you can leave out the KBr unless you're doing an alternative process that requires the absolute minimum fog. There is a post somewhere from Sandy King to that effect. Maybe (just a guess on my part) this could entail the use of a little less water.