I just ran my first set of tests with the TF 100. Results for Alk, CH and CYA are quite different. Have a clear and clean pool and have not been using much chlorine, but I did just enable my IC40 salt system last week so consumption may be not as evident as adding liquid chlorine.. Running the IC40 at 20% for 12 hours or so.
Color Q ------ TF-100 ------- Variance ------ / Percent %
FC 2.4 ------ 3.5 ------- 1.2 ------ / 34%
TC 2.69 ------ ------ ------ / 0
CC ------ -0- ------ / 0
ALK 110 ------ 80 ------ 30 ppm / 27%
CH 291 ------ 180 ------ 111 ppm/ 38%
CYA 51 ------ 20 ------ 21 ppm/ 60%
These are quite different as you can see. I am very accurate in my testing, using clean tubes and a speed stir. Tested CYA twice.
I also know that a couple of weeks ago I added enough CYA to bump my levels by 20+
Color Q ------ TF-100 ------- Variance ------ / Percent %
FC 2.4 ------ 3.5 ------- 1.2 ------ / 34%
TC 2.69 ------ ------ ------ / 0
CC ------ -0- ------ / 0
ALK 110 ------ 80 ------ 30 ppm / 27%
CH 291 ------ 180 ------ 111 ppm/ 38%
CYA 51 ------ 20 ------ 21 ppm/ 60%
These are quite different as you can see. I am very accurate in my testing, using clean tubes and a speed stir. Tested CYA twice.
I also know that a couple of weeks ago I added enough CYA to bump my levels by 20+