Quote Originally Posted by dorff View Post
Sodium sulphite (natriumsulfiet) on its own will not be sufficient to clear fixer.
Are you sure? I'm not a chemist, but many sources say that sodium sulphite does work to help 'clear the hypo'.

See e.g. Ralph Lambrecht's formula for HCA-1 in Way Beyond Monochrome (2nd edition), p. 504: just water and sodium sulphite (and sodium hexametaphosphate if the local water is 'hard').

Perhaps I'm reading you the wrong way and you mean to say that a sodium sulphite solution only works in conjunction with sufficient plain water rinsing?