Why Pahlen Swimming Pool Filter cannot be calibrated?
- JJanet ParkerAug 1, 2025
The Pahlen Swimming Pool Filter might not calibrate due to several reasons: * Low or high measurement water flow (chlorine unit only): In this case, check the filter. * Unreasonable measurement values (free chlorine values < 0.3 ppm and > 3.0 ppm): Verify chlorine values using photometric equipment. * High levels of cyanuric acid in the pool water: Use photometric equipment to check. Dilute the pool water with tap water if necessary. * Electrode or connection fault: Inspect connections, clean electrodes, or replace them if needed.