Water Quality

The Defender^® filter will remove particles down to 1 micron. With the growing concerns about waterborne illnesses (WBI) such as cryptosporidiosis, the smaller the particle removal the better. The Defender^® filter is especially effective on pools with heavy bather loads because of the increased filter area and dirt holding capacity.

Defender^® filter will also retard the increase in turbidity. A major contributor to turbidity in pool water is the treatment chemicals, especially sodium hypochlorite. The improved filtration, along with the reduction of make-up water, cuts the chemical requirements and the associated turbidity buildup.

See how big a micron is

Findings from a recent study by the University of North Carolina on cryptosporidium and particle removal from swimming pool water indicate:

• Precoat Filtration with both DE and perlite outperformed cartridge and sand filtration by a wide margin

• Single pass testing resulted in crypto removal of 99.9% using perlite media

• When testing 1-micron microsphere removal, perlite performed at 56.5% versus 20.2% for sand