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.
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
Back up should be used with these BioGuard Care Systems: 3-Step and Once-A-Week 3-Step.
This product is part of the BioGuard Inhibit Category.
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