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For generations, the inside of a pool sand filter held exactly what the name says: graded silica sand, quietly trapping dirt until the next backwash. Glass media asks a simple question about that arrangement. If crushed, cleaned glass can do the same job, why not let bottles that would otherwise go to a landfill keep a pool clear? BrightLine is one answer to that question.
BrightLine is a glass filter media made from amorphous soda-lime glass, the same everyday glass used in bottles and windows. Distributor listings name Harsco as the brand, and describe it as suitable in place of sand or anthracite in both residential pool filters and wastewater treatment filters, designed to let backwash water flow through easily while it removes suspended solids.
Retail listings describe it as made from 100 percent recycled material and claim it filters down to about 5 microns, compared with roughly 30 microns for sand, with improved clarity, a longer life than sand and about 20 percent less media needed by weight. Those are seller claims, so check the bag and the filter manufacturer's guidance when converting a filter.
Filters and other filtration supplies are under filters and sanitizers.
BrightLine is made of amorphous soda-lime glass, and retailers describe it as made from recycled material.
Distributor listings name Harsco as the brand behind BrightLine glass filter media.
Yes. BrightLine is sold as a replacement for sand or anthracite media in pool filters, and retailers say it takes about 20 percent less media by weight than sand. Follow the filter manufacturer's guidance when converting.
Retailers state BrightLine filters down to about 5 microns, compared with roughly 30 microns for typical pool filter sand.
