John Song , Dec 13, 1997; 07:55 p.m.
I guess distilled water will be better, but I've never used distilled water on my color, b&w or B/W printing chemicals. Just the water stright from the sink and it works just fine. I've never used pin-hole cameras before so I really can't tell you whether the black problem is the camera system itself or the developing, but I think you are over exposing the paper just a bit too much hence not getting dark blacks. Do you see the black(clear)on your negatives?