Simple Question - CC Testing

SteveSwims

Well-known member
Jul 5, 2024
119
United Kingdom
Hi all, when using a Taylor K2006 FAS DPD chlorine test, how long after adding the 5 drops of R-0003 should I wait before either accepting no colour change or seeing a shade of pink?

I.e if there is CC present, will the water change to a shade of pink as soon as the drops hit the water or should you wait for a few seconds after all 5 drops have been added (5/10/15/more?)?

I often see no colour change immediately after adding the 5 drops but after 15/20 seconds or so a shade of pink sometimes creeps in.

Thanks!
 
Last edited:
Change or no change immediately after adding the drops is the test.

Color change after the sample sitting is not part of the test.
 
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