Alkalinity test

Redsurprise

Well-known member
Jun 12, 2023
158
Surprise, AZ
Pool Size
7800
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
Hayward Aqua Rite (T-15)
Someone told me for Calcium Hardness to keep adding drops until the color doesn’t change anymore. Is that the same for Alkalinty? I will have the color from green to a clear, slightly pink and tinged color, but then with another drop it turns pink pink, then even more pink with one more drop. At what point do I count my drop as the final to get my alkalinity number?
 
For both CH and TA - add drops until the color doesn't change anymore.
Subtract the last drop that doesn't further change the color.

The TA test should turn approximately Barbie pink. But still keep adding drops until the last drop doesn't change the color - and subtract that last drop.
 
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