Built on water purification technology created by NASA, Caribbean Clear has used this space-age science since 1982. Silver ions to control bacteria, copper ions to control algae — refined into a scientifically proven formula specifically designed for your pool. NASA’s own publication report that Caribbean Clear-treated water can meet standards comparable to EPA drinking-water requirements—a level of proven safety few other systems can claim. The system pairs a long-lasting 93% copper / 7% silver electrode with a compact controller, automatically releasing the exact ions needed directly into your pool’s existing circulation system.