Filter Multiport – Backwash

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Filter Multiport – Backwash

In this video, we will cover backwashing basics

Backwashing is used to discharged the used filter media out of the filter so the grids can be re-coated with fresh DE. For step by step instruction on how to backwash CLICK HERE


  • Sand filters and DE filters are capable of backwashing.
  • Never move the multiport handle while the pump is running.
  • The recommended number of backwash cycles is three.
  • After backwashing a DE filter, add 3 lbs (or 3 orange scoops) of DE to the skimmer.

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