LegacyPro EcoPro BW Clear Stop Bath

[darkroomfan3]

Hello,

I am wondering how to tell if my stop bath is exhausted.

Thank you for your help!

[Digitaltruth]

The easiest way is to use pH indicator test strips or a test meter. Full information (including links to purchase third-party testing kits) can be found here:

http://www.digitaltruth.com/products/ecopro_stop.php

Alternatively, you can simply change it at the same time as the fixer, or at the end of each session. The exact throughput is hard to measure as developer carry-over and local variables will have differing effects on the lifespan, but if you use pH strips for a while you will be able to work out your typical throughput.

Please bear in mind that we recommend using a water bath in place of a stop bath for the best archival speed and economy. The stop bath product is provided primarily for multi-user darkrooms where it can be useful to prolong the life of the fixer and maintain reliability.

For full details on archival processing please see: http://www.digitaltruth.com/products/ec ... ndwash.php

[darkroomfan3]

Thank you for your speedy reply! That is exactly the information that I needed! I am so glad this forum exists!