CH test color change

BDY

Gold Supporter
Apr 2, 2022
802
Houston, TX
Pool Size
10000
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-40
Quick question please on the CH test…

From reading the kit directions and the extended directions here …. If i understand correctly the last drop that changes color is what counts.

In my testing the 12th drop turned blue and the 13th drop turned ever so slightly a more intense shade of the same blue. Would i count that last drop even though it was a small shade change compared to the initial color change?

Thanks
B
 
The tests want 'no further change' so I'd count drop 13 and prove the no further change with drop 14.

Either way, 25 ppm of Calcium isn't going to change the price of beer. :)
 
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