• 100% boric acid

• pH 5.1

• Compatible with chlorine, bromine, Mineral Springs®, saltwater, and SoftSwim® systems

• Stable in sunlight

• Does not evaporate

• Softens water

• Improves water quality

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  BioGuard Optimizer helps the BioGuard brominating, chlorinating, biguanide or salt programs work more efficiently. It buffers and helps keep the water balanced. In addition to creating soft and soothing water, this product is proven to improve water clarity. It also softens water to skin and eyes. BioGuard Optimizer is stable in pool water and is not degraded by sunlight.Prevent algae before it becomes an issue. The addition of algicide is needed for proper pool maintenance. Sanitizers or shock/oxidizers alone may not keep algae at bay and this step is needed to keep your pool completely clear of any growth. This is the third part of the BioGuard 3-Step Pool Care System. Do all algicides kill algae? Not all algicides are alike, only algicides that have been approved by the EPA for killing algae actually perform. All BioGuard products have been thoroughly reviewed and proven effective. Various kinds of algae may require different treatments to ensure they are eliminated.