Black Algae

  • Poor Filtration – That’s why it always comes back!
  • Black Algae spores are large enough to be removed by efficient filtration. If filtration is sub-optimal spores accumulate either in ‘dead’ spots or where surfaces are pitted (age). Effective Filtration blocks spores at the filter.

Secondary Cause:
  • Insufficient Chemical treatment and incorrect pH.
OK, Now What?