• Floating Thermometer Floating thermometers float on the surface of the swimming pool water, and are useful for monitoring swimming pool water temperature.
  • Filter Cartridges Filter cartridges are part of the swimming pool water filtration system, where pool water is passed through a cartridge, with any debris and dirt caught in the filter material, resulting in cleaner and clearer pool water.
  • Filter Basket A filter basket prevents large items and debris from entering the swimming pool pump, and should be checked often to keep pool water circulating efficiently.
  • FAS DPD Test The FAS DPD test is an enhancement to the regular DPD test, as it can directly measure free and total chlorine levels present in swimming pool water.
  • Flocculant Flocculants are chemicals designed to bind with contaminates or other chemicals in swimming pool water, allowing the combined result to be filtered or vacuumed from the pool water.
  • Fading Endpoint Fading endpoint is a situation occurring during testing of calcium hardness where the tested water sample turns purple instead of the expected blue color.
  • Free Chlorine Free chlorine sanitizes and oxidizes swimming pool water, keeping the water safe and clear for swimmers.