Call me simple. I wash prints in my 12x16 inch tray. After a dip in wash aid for 10 min, I fill and dump the tray (7 times) over 20 - 30 min. Tray capacity is no more than three 8x10s or four to five 5x7s. It was David Vestal who wrote in one of his books that tray washing was even better than the best commercial washers. Works great if your print volume is low.