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  1. dw1305

    Drop checker solution

    Hi all, Not really it has to be DI water, it mustn't have any carbonates in it at all. cheers Darrel
  2. dw1305

    Drop checker solution

    Hi all, That would be my suggestion as well. You might need to add some more <"bromothymol blue"> pH indicator, if the diluted solution is really pale. cheers Darrel