The media within the filter element removes contaminants by a surface phenomenon known as adsorption which results from the molecular attraction of substances to the surface of the media. As the sport berkey bottle is pressed, the source water is forced through the filter. The quality and volume of media used, determine the rate of adsorption. The flow rate or time of exposure through the filter has been calculated to yield the greatest volume removal of toxic chemicals caused by pollution from industry and agriculture. This exclusive filter element is impregnated with proprietary absorbing media that promotes IONIC absorption of pollutants within the micro porous element, such as aluminum, cadmium, chromium, copper, lead, mercury, and other dangerous heavy metals.

If using a source of water that might contain extreme bacteriological or viral contamination, it is recommended that two drops of plain chlorinated bleach or iodine be added to each refill before filtering. This will kill minute pathogens such as viruses. The disinfectant will then be filtered from the water entirely removing its odor, color and taste.

Fill the Sport Berkey Water Purifier Bottle with water, screw on cap and tighten securely to eliminate leaks. Flush water through filter by pulling down lever, so that straw is exposed, and squeeze water through filter & out the straw. Repeat this flushing process twice before drinking. This removes excess process dust from the filter. After 2 flushes, rinse the bottle & cap. The sport berkey bottle is now ready for use.

The 22 oz Sport Berkey Water Purifier Bottle has a shelf life of 50 years. When the filter system will not be used for an extended period, flush the unit with a chlorinated solution of 1/4 tsp. per one half gallon of water. Allow to dry thoroughly with cap removed. Re-assemble and stow. Do not allow sport berkey to freeze, do not place in microwave oven and do not run hot water through the filter.

Warranty--free from defects in materials and workmanship for a period of 6 months.