Removing gunk from tanks etc

Discussion in 'B&W: Film, Paper, Chemistry' started by Harry Lime, Jul 23, 2008.

  1. Harry Lime

    Harry Lime Member

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    Can anyone recommend a method / chemical for removing gunk from developer tanks etc?

    I think the build up is killing my developer etc...

    thanks,

    HL
     
  2. Stephen Frizza

    Stephen Frizza Member

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    Tar and rack cleaner its a wonder substance all the pro labs and mini labs here in australia use it I'm sure its available overseas.

    ~Steve
     
  3. tjaded

    tjaded Subscriber

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    Ethyl alcohol or bleach...assuming you have some good ventilation that is!
     
  4. rmolson

    rmolson Member

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    The old Kodak Formula for tray cleaner found in an Old PhotoLab Index
    Is Water 32oz.
    Potassium Bichromate 3oz
    Sulfuric Acid 3 oz
    Add the acid to the solution slowly

    No doubt EPA and other governmental agencies would not allow it any more in order to protect us from out selves….but it worked for years and hardly any one died!
     
  5. jim appleyard

    jim appleyard Member

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    When I worked in photo labs we used toilet bowl cleaner on the racks & rollers, cheap & effective. I would advise doing it outside and rubber gloves.
     
  6. Mike Wilde

    Mike Wilde Member

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    The chrome cleaner formula - it can be stored and reused many times. The cue is to use it until it turns from orange to green. The chrome is then in a less toxic form - the same deal applies with chrome film bleaches
     
  7. Akki14

    Akki14 Member

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  8. Harry Lime

    Harry Lime Member

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    Sulfuric Acid and Bleach. Sounds like fun afternoon!

    Thank you gentlemen.