- Mar 28, 2011
- 121
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-45 Plus
So yesterday I used the TF kit for the first time (also my first time testing CH) and I wanted to ask and see what kind of "blue" I should be looking for in the calcium hardness test. I think my CH was somewhere around 400, but it was a very gradual color change from red to purple to bluish purple to finally a pale blue with a hint of purple (added 2 - 3 more drops and the small hint of purple didn't change). Is this what I am supposed to be seeing?