Quote Originally Posted by Gerald C Koch View Post
While replenishing a color processing system is possible the complexity of the tests required is beyond that of most users. You would need an extensive knowledge of chemistry and an analytical laboraty at your disposal.
Hi Gerald, not so...virtually all of the mini-labs, etc, replenish, without much technical expertise. All that's needed is a spec for how much to use for a given amount of processed material, with periodic checks, such as process control strips and maybe specific gravity checks. The specified pH adjustments you mention are a bit tricker, but still at a techician level.

It mainly gets tricky when one desires to REGENERATE chemicals. That is when the chemical analysis and knowledge of formulas, etc., becomes necessary. My experience is largely in working with such operations having a staff chemist. (Obviously there has to be enough processing volume to be worthwhile.)