Cara's Pool School — filter

If it's a cartridge filter, remove the cartridge and chemically clean it after a good hose-down, thoroughly rinse it to remove any foaming from the treatment, and then put the filter back into operation. If it's a sand or D.E. filter, start with backwashing and then confirm that the pressure has adjusted back to normal operation parameters. If the cloudy problem persists, D.E. filters may need to be disassembled and cleaned; while sand filters may need a chemical cleansing of the sand media, or even replacement. If you're not comfortable with performing such maintenance or making related repairs, consult with...

Most typical floaters are designed to be filled to capacity, as the amount of chlorine making its way into the water is gauged by adjustable vents or slots on the floater's outer casing. Free Chlorine should generally maintained between 1.5 and 3.0 ppm. Since the amount of chlorine needed is directly associated with demand based on weather conditions, bather load, and current chlorine levels, it's almost impossible to offer specifics for dosing needs. If you're unsure about your condition or application, it's probably best to consult with your local and trusted pool professional for a full water analysis and recommendation.