We,re using neorip, viper xpt 6000 and epson f2000. The white ink is bleeding thru colors on dark shirts. We are using 30grams of epson pt. 30 seconds after pt at 330 & 90 seconds @ 330. We did'nt have this problem in the beginning. I was wondering if the pretreatment can get watered down with nightly clean ups? Or if I'm missing something obvious. Also, we are using clear plastic containers for our pt. is pt light sensitive in liquid form?