streaks

Its always a good idea to be filtering the water you are using, but that is not likly to be causing your problems. Developer streaking usualy is created at the beginning of the development process. A pre soak in water may help solve the problem (it will also change your total dev. time) but chances are that the cause is your initial agitation, it might be too vigirous. And if you continue to agitate in the same manner for the remainder of your time you will only aqdd to the problem. Submerging the film quickly into a tank of developer can actualy increase turbulance around the sprocket holes and add to the build up with improper agitation.

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