glad to find this thread, had a roll of tri-x looking a slight purple last night but scanned just fine-wanted to double check it wasn't a problem. thanks everyone who shares their knowledge here! great forum!
simply put :the longer you processing wet time (regardless in what)the more of the harmless purple anti-halation dye will wash out. however,a few steps will certainly grt rid of it:
1. a 10-minute hypoclearing bath.
two-bath fixing, followed by hca and a 10-minute wash.
3. onehour-exposure to uv(sunor face tanning unit, buti have never tested this!)