> > It helps to avoid aerial oxidation during rotary development, which helps to > avoid streaking. > > Jim > How does it do that? It sequesters other things than just calcium but generally restricted to metals. JB ============================================================================================================= To unsubscribe from this list, go to www.freelists.org and logon to your account (the same e-mail address and password you set-up when you subscribed,) and unsubscribe from there.