What do you use for developing, daylight or regular tanks? I use d-76 replenished, stored in a one gallon data bottle. This is kept full, adding the replenisher before dumping the used developer back in. If you are using tanks, make sure that you are using a floating lid to reduce the area prone to air oxidation. Remember that replenished developer can get pretty muddy looking. This does not hurt the film as long as the developer is still active. I use a pre-soak to help keep the developer cleaner. Just my two cents, Steven.