TF 100 Alkalinity test

[MikeTX]

I need some advice on this test. Is the test complete when it "just" turns red? Or, when it stays red? I get to drop number 7 of R-0009 and it turns red and back to green. Drop number 8 turns red and then clear. Drop number 9 goes red and stays red.

 

[mknauss]

Goes red and stays red.
See Total Alkalinity - Trouble Free Pool

 

[Richard320]

I need some advice on this test. Is the test complete when it "just" turns red? Or, when it stays red? I get to drop number 7 of R-0009 and it turns red and back to green. Drop number 8 turns red and then clear. Drop number 9 goes red and stays red.

Does drop 10 make it go darker? You keep going until you get to the drop that doesn;t do any more, and deduct it.

In your case, it's probably 9 goes red, 10 goes redder, and 11 does nothing. So 10 drops. 100 ppm. Or maybe 90 is as red as it gets.

 

[MikeTX]

Sure enough, it did go darker red with another drop. Thanks for the help!