Back Up 2

Non-staining formula prevents a wide variety of algae Powerful wetting agent and surfactant help it work into cracks and crevices Not appropriate for pools with attached spas or water features Can be used with the 3-Step or Once-A-Week 3-Step BioGuard® Care System Features Highly effective broad spectrum algae preventative Compatible with chlorine, bromine, Mineral Springs® and saltwater systems Complements chlorine in pool care Powerful surfactant / wetting agent Stable in sunlight & will not evaporate Works in all pH ranges pH neutral Activity increases as water temperature rises Concentrated Alkyl (50% C14, 40% C12, 10% C16)Dimethyl Benzyl Ammonium Chloride 50.0% Benefits Keeps pool water clear and free of visible algae Controls algae and algal slime growth in swimming pools Non-staining Suitable for all pool surfaces What it does Back Up® 2 is the preferred algae preventative for the BioGuard® 3-Step System. Weekly use of this product prevents algae before it starts.