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  1. #1
    Rinthe's Avatar
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    distilled water for mixing developer?

    do i need to use distilled water for mixing developer and dilution? i'm thinking about xtol developer.

  2. #2
    ann
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    no not really, however when you get to toning i would suggest that distilled is the way to go for the toners.
    http://www.aclancyphotography.com

  3. #3
    Colin Corneau's Avatar
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    Funny, I've done the opposite and it works OK.

    You can't really go wrong using distilled either way - better to err on the side of caution.

  4. #4
    Guillaume Zuili's Avatar
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    Yes for film dev. No for paper.
    For some toners definitely yes.
    G.

  5. #5
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    I guess the answer depends on the water quality where you live. Where I live the water is always drinkable but the mineral and other dissolved solids content can vary depending on which well field the town is using at the time. To eliminate variables I always used distilled water for everything but the final wash, although for film I do a final rinse with Edwal LFN and distilled water.

    Ash

  6. #6
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    Just as a data point - I used to be really paranoid about mixing with distilled - esp expensive chemicals and film dev. I got really sick of spending the money on distilled water and just started using tap one day about 10-15 years ago. Since then I have moved all over the world with water quality all over the map.

    I have seen NO practical difference in any of the film dev chemistry I use. Your milage may vary.

    For toners - depending on what toner you use you may see a slight difference. Maybe.

    RB

    Ps. someday I may actually measure the thing that I suppose has the biggest impact on film dev PH just to see if it makes ANY measurable difference in the actual PH of the developer - I doubt it.

  7. #7
    Rinthe's Avatar
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    you have to actually buy distilled water? can't i make it somehow? well it sounds like it's not too big of a deal.. thanks guys

  8. #8

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    you can make distilled water. there are instructional videos on youtube.

    basically boil the water, trap the steam and let the vapor cool. turns into water.

    Neopolitan water is very hard. I've done it a few times for mixing developer. Pretty much i just use a brita filter now.

  9. #9
    Ian Grant's Avatar
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    Commercial developers don't generally need making up with distilled or de-ionised water, they contain sequestering agents to cope with all but the very worst tap water, the odd exception will say in the mixing instructions when distilled deionised water is needed.

    It is best practice to use distilled or de-ionised water if you're making up developers etc from raw chemicals, and the simplest solution is to us a small jug type deionising filter, (Britax or similar).

    Ian

  10. #10

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    Some bottled water sold in supermarkets for drinking has very low mineral content and is a cheap alternative to distilled water. The analysis is printed on the bottle.

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