I have the Taylor K2005 kit and my FC tester has readings for 1, 2, 3, 5, 7.5, 10. With a CYA of 40, I believe my acceptable range for FC is 3-7. Given that my tester is missing 4, 6, and 7 as a reading, could I be in trouble down the road? I have the FAS-DPD test that I can get into the .2 increments if I want, but I was curious if that is just overkill. I just don't want to drop below 3 and knowing if I'm at an in between number can help with adding the right amount of chlorine to keep the FC count high.
How accurate does the FC need to be in a non SLAM situation?
- Thread starter ss32000
- Start date
- Jun 24, 2021
- 7,504
- Pool Size
- 30000
- Surface
- Vinyl
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-60
Use the FAS-DPD. Use 10ml. Each drop is .5FC. This is perfect to maintain FC.
The comparator block has a chlorine scale and a bromide scale side by side. Everyone (including me) thought it was 5-10 (etc) at first. It's really 5 FC or 10 BR and you are testing either/or, not both.
- Jun 22, 2014
- 47,844
- Pool Size
- 17888
- Surface
- Fiberglass
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-45 Plus
^^ Agreed. The Taylor 25 ML w/ .2 factor is a bit overkill and typically not needed. Use the 10 ML water sample size w/ one generous scoop of powder, then mix until clear and divide the result in half. Example: 10 drops is an FC of 5. Easy stuff and very reliable with the FAS-DPD.