Sorry for using English, as I have no working knowledge of Dutch, Flemish, or Afrikaans—I bumped into this thread by accident. According to Anchell's The Darkroom Cookbook, 2nd ed, page 254, the ingredient that does the job of helping diffuse fixer out or paper and into the HCA solution is sodium sulphite. Sodium bisulphite is described as an optional ingredient, used to lower the pH in order to prevent softening of the emulsion of film. Anchell further suggests that if paper is to be used, the bisulphite may be left out in order to improve the paper's gloss. And on another note, sodium bisulphite and sodium metabisulphite are not the same thing, although both can be used for this purpose, weight-for-weight. I believe Ralph Lambrecht Way Beyond Monochrome suggestions go along similar line of thinking. In general, I understand that there are many formulations for fixer rinse aid. Originally it was discovered aboard seagoing ships, where sea water proved to be better at clearing fixer than drinking water was.
Originally Posted by dorff
Last edited by Rafal Lukawiecki; 11-28-2012 at 01:06 PM. Click to view previous post history.