I've got quite a bit of leftover TSP (bought it for making MCM-100; not my favorite dev and used the rest of the glycin for Ansco 130) and have nothing to use it with. Does anyone know of some formula I can stick this stuff in? Or can it be subbed for sod. carb? I see its pH is close to sod. carb. (BTW, I don't know if the TSP I have is anal grade, farm grade, photo grade, 1st grade or mule fritters! As long as it ain't BORAX!