Quote Originally Posted by jstraw View Post
Good to know. I was planning to use TF-4. Can I use Kodak Indicator Stop Bath with 510 and TF-4?
I've never used an acid stop with 510-Pyro, just a plain water rinse. I can understand someone wanting to use an acid stop when using high strength dilutions of 510 that require short developing times

PF recommends a water rinse instead of an acid stop bath with TF-4

See: http://www.photoformulary.com/uploads/03-0141.pdf

However, you should be ok using an acid stop bath after the 510-Pyro if you follow the stop bath with a water rinse.

Clear Fix has sufficient pH buffering that you can go from 510 into an acid stop and then into the Clear Fix. IMHO, it's still a good idea to use a plain water rinse after the stop bath.