- May 23, 2015
- 25,693
- Pool Size
- 16000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
If the tabs caused the pH/TA to crash then the FC could have been excessively high during that time. Test strips can only “work” (I use that term lightly) when the water parameters are within normal ranges. If the FC was high, then any of the other tests could be compromised, especially the pH because it will give false high readings with high FC. Other test lads will just bleach out.