How Red is Red?

[reluctantchemist]

TF-100 Test kit came today. Only real question is reading the TA. Is it considered red when the water turns pink/deep pink? numbers:
12:30pm . . . .7:45pm
FC=18.5 . . . . FC=13
CC=3.5 . . . . .CC= XX
TC=22.0 . . . .TC= XX
pH=7.5 . . . . .pH=7.2
TA=130 . . . . TA=140
CYA=25 . . . . CYA=30
Stabilizer dissolving in sock put in 7/24 when CYA was 0 according to pool store guy. I'm afraid I'm being too exact as to what is "red", in which case my TAs are actually lower. Thanks

 

[JamesW]

Once the water turns pink, add another drop, if the water color gets more pink, then count the drop, if the color does not change, then don't count the drop.

 

[Richard320]

It's not really red, it's more of a Barbie pink

 

[reluctantchemist]

Wasn't a Barbie kinda gal growing up, but my daughter was and Barbie Pink explains the color perfectly!! I think I went a little beyond, now I feel better that TA isn't really that high. Thanks. This is like doing lab work at the animal hospital I work at, which I rather enjoy. Maybe I'm not such a reluctant chemist?

 

[Bama Rambler]

What JamesW said.
It doesn't really matter what shade of red it is. The endpoint is when you're adding drops and the color changes, keep adding drops until you add a drop that doesn't change the color and don't count that last drop.

 

[reluctantchemist]

Advice taken this morning, TA was 110. Rest of numbers...FC=10, CC=2, TC=12, pH=7.2, CYA=30. FC dropped 3 overnight and water still cloudy, so am continuing to add chlorine and nag hubby to brush & vacumn. I must say, I feel I could become addicted to testing

 

[Bama Rambler]

I'd even bump the FC up to about 13 or so each time, given you lost 3 ppm overnight. Keep at it and you'll get there soon.

 

[reluctantchemist]

Per Pool Calculator, did add chlorine for a FC target of 13. Will attempt to maintain it there. Thank, lfk