Quote Originally Posted by William Barnett-Lewis View Post
I've been using Diafine for all of my 4x5 development but have been considering giving a pyrocat version a try. I develop in a HP Combi-Plan daylight tank.

Is it possible to use that tank or do I need to go with something else? How much agitation would be needed?

Thanks!

William

I think you should be able to use the Combi-Plan with two-bath Pyrocat. If it works with Diafine I think you should be ok with Pyrocat.

When I develop in tanks I agitate for a full minute at first in Solution A, and then for 15 seconds every minute thereafter. Be sure to add a few drops of Photoflo to Solution A. After finishing the time in Solution A drain for about 15 seconds.

I am not sure how you pour in the developer with a Combi-Plan, but if possible you need to remove the lid and pour in all of Solution B as quickly as possible. Then agitate continuously in Solution B for a minute, and for about 15 seconds every minute thereafter.

Sandy