TF-100 alkalinity confusion!! PLEASE HELP!

thefloatqueen

Bronze Supporter
Dec 24, 2018
422
Columbus, OH
So I’m testing for the TA and as soon as the sample turned green, I began dropping the R-009, swirling, cleaning off cap, and I’m seeing tiny pink drops when I first started dropping the R-009 solution but water stayed green. 22 drops later the bottle is pink. Does this count as “red”? What am I doing wrong?! It is raining and I don’t have chemicals in the pool yet if that helps. Chlorine level is 0 and I’m getting somewhere between 7.5 and 7.8 pH readings. This TA is so frustrating!! I don’t want to keep dropping it until I run out! Ahhhhh this pool is going to be the death of me lol HELPPPP please! Thanks in advance!
 
Last edited:

frogabog

Gold Supporter
LifeTime Supporter
Jul 16, 2010
2,833
Portland, Oregon
Put chlorine in. That's what's important. And CYA. See FC/CYA Chart

Don't worry about TA for the moment, but if you must...

What happened between drop 22 and 30? It can turn pink, but the next drop usually goes to actual red. Add another drop and it won't change, then you disregard that last drop that didn't do anything.
 

thefloatqueen

Bronze Supporter
Dec 24, 2018
422
Columbus, OH
So I should go with 22 when the entire bottle turned light pink? Or the initial couple drops that were pink before I started to swirl? Should I just shock the d*mn pool and try this again tomorrow since we are getting some light on and off rain?
 

thefloatqueen

Bronze Supporter
Dec 24, 2018
422
Columbus, OH
Also in the beginning after each drop, wipe, and swirl, it started to turn pink at the bottom of the plastic cylinder but green above that despite the swirling. Talk about frustrating to say the least...
 

frogabog

Gold Supporter
LifeTime Supporter
Jul 16, 2010
2,833
Portland, Oregon
Why do you think you need to shock?

What you are referring to as pink is actually red. Pink on this test is quite a bit lighter.

Add enough chlorine to get to your target for your CYA. At 0 CYA that's 3ppm. Then get the CYA in.
 
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