I'm using the Taylor 2006 FAS-DPD test kit.
1. For my first tests on Monday I used the 25 ml sample line and had to add 37 drops of R-0871...so my FC is around 7.4? Seems too high, and I'm wondering what I did wrong?
2. No combined chlorine was found, that's good, right?
3. pH was 7.2
4. Alkalinity was 80 ppm.
5. Cyanuric Acid was 38 ppm.
On Wednesday, I tested again with a 10 ml sample and got a FC reading of 4.5 ppm. Only a slight pink colour on the combined chlorine test, 1 drop to make it colourless.
I realized that I my stabilized pucks had just run out, topped them up this morning. pH is 7.4.
Everything seemed to be in order except my first test for FC. Any idea why it was so high/off? Thanks in advance, Flynn