can occur in drinking water naturally as a result of the geological
composition of soils and bedrock. Most water supplies contain some
naturally occurring fluoride. Fluoride also enters drinking water in
discharge from fertilizer or aluminum factories. The decision to
fluoridate a water supply is made by the State or local municipality.
EPA has set the level of protection for fluoride at 4.0 mg/L or 4.0 ppm,
to prevent potential health risk.
Capacity is up to 11,000 ppm
with effluent levels below 0.2 ppm from 10 ppm feed. Note: high pH and
high bicarbonate levels reduce capacity - above 100 ppm bicarbonate,
reduction by 50%; above 200 ppm, reduction by 75%. Contains fine-mesh
pre-resin media in the unit to reduce fluorides below 0.5 ppm