CRUSHED GLASS FILTER MEDIA
The Pool Shop Group recommends and uses only premium crushed glass in their granular filters. Crushed glass is now the preferred filter media rather than sand as in the past.
Glass offers a filtration level comparable to DE. Made from pure glass, the media filters out anything larger than 3 microns, giving you superior quality water. Small effective size of only 0.6mm to 0.8mm. Its narrow particle size range allows very effective in-depth filtration. This not only means cleaner pools but also less friction levels inside the filter and therefore requiring only 20% of the water you would use to backwash a sand filter.