The purple stain can be removed by rinsing throughtly. You can use water for some films like Delta's, but I use Perma Wash, even with Ilfords films. Keep rinsing and the stain will disappear. With T-max films I believe it takes a little longer, but it can and should be removed. If it is not removed, it may interfere with muti-contrast papers.(posted 9652 days ago)