BioGuard Optimizer helps the BioGuard brominating, chlorinating or biguanide programs work more efficiently. It buffers and helps keep the water balanced. In addition to creating soft and soothing water, this product helps suppress algae growth and is proven to improve water clarity. It also softens water to skin and eyes. Optimizer is pH neutral in pool water and is not degraded by sunlight. 1. Enhances water clarity 2. Improves swimmmer comfort 3. Creates soft and sparkling water