One of BioGuard’s most popular algae preventatives. Works well in chlorinated and brominated pools. A powerful surfactant/wetting agent makes Back Up able to work in tiny cracks and crevices where algae start.
Back up should be used with these BioGuard Care Systems: 3-Step and Once-A-Week 3-Step.
- Highly effective algae preventative and algae killer
- Keeps pool water clear and free of visible algae
- Activity increases as water temperature rises (and you need protection the most)
- Will not affect pH levels
With all pool care products, avoid physical contact. Follow safety information on label instructions. Open in well-ventilated area. Avoid breathing fumes. Store in a cool, dry place. Keep out of the reach of children.