U of S | Mailing List Archive | alt-photo-process-l | Re: making PO developer

Re: making PO developer


Yes, this is the first time I've made it. My water's ph is neutral, a 7.

I'll just filter it and try a print...


----- Original Message ----- From: "Alberto Novo" <alt.list@albertonovo.it>
To: <alt-photo-process-l@usask.ca>
Sent: Thursday, May 28, 2009 11:45 PM
Subject: Re: making PO developer

is this the first time that you prepared it?
Is your tap water particularly hard? If so, your precipitate is calcium oxalate. Perhaps not harmful, but I would prefer to filter or decant it.
Hi all... Last week, I made my potassium oxalate developer. I haven't used it yet, but notice that there is a decent amount of precipitate in the bottom of the bottle. Not matter how much I shake it up, the next day it's still there. Should I just filter this out? ...or be worried about anything else? Thanks... Paul