How Do I Add DE and How Often Do I Need to Change My DE?
DE is added through the skimmer with the pump running. Each filter has a different requirement of DE. At initial start up or after a thorough cleaning, the filter will need to be pre-coated with DE. The filter label will state the amount of DE required.
Start the pump and once the pump is fully primed, measure the DE using a DE scoop, part # EC10SC. Slowly add the DE into the skimmer. The pump will draw in the DE and send it into the filter, where it coats the grids or Flex tubes. Once all the DE is added, take a reading of the filter’s pressure gauge. This is the clean starting pressure of the filter.
When the pressure rises 8-10 PSI above the starting pressure, it is time to backwash or clean the filter. After the filter is backwashed or thoroughly cleaned, by taking it apart and hosing it out, you will need to pre-coat the filter again with the entire amount of DE stated on the filter label.