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  1. #11
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    Aeration of fresh bleach is probably not needed, as the aeration in tap water and the mixing action may do the trick, but the new bleach III is premixed. Distilled water has had most all of the air driven out of it by the distillation process.

    IDK what sitting on the shelf for months may do to the concentrate other than form crystals. So, the shaking does not hurt.

    If you use a Jobo though, the aeration from the agitation will completely aerate a batch of bleach.

    BTW, aeration is not suggested for blixes. It can hurt the thiosulfate by oxidizing it. It also oxidizes the sulfite in blixes and bleaches which contain it.

    PE

  2. #12

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    Thanks PE for the explanation of the areation of the bleach and perhaps I will be able to salvage a couple of old transparencies.

    Gord

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