Less than two decades ago, automatic pool vacuums first came out. Today you probably won't find a pool without an automatic vacuum. The same goes for sanitizing a pool. Why work daily at dosing and handling chemicals when it can be done automatically with the Carefree Clearwater system using safe mineral ions. Copper and silver have been used for centuries to sanitize water.
Copper is a well know algicide and silver is a powerful bactericide.
In the ancient Greek civilization, the royalty used to drink from silver goblets and their water was stored in silver urns in order to purify their drinking water. As the pioneer settlers moved west across the American continent, they insured safe drinking water by putting silver coins in their barrels of water and milk. In the 1960's, NASA developed an electrolytic silver ionizer to purify the astronauts drinking water for use on the Apollo missions. Today silver is used in medications for treatment of burn patients to prevent infections, for newborns to prevent blindness, to make bacteria free cosmetics, in drinking water filters, and for filling cavities in teeth to help prevent further decay. Copper based algicides have long been used in swimming pools, fountains, lakes and ponds to safely control algae problems.