The most effective algae preventative.
Add Every Two Weeks
Bio Guard Back-Up Algae Inhibitor is specially formulated to work with chlorine in preventing and killing all types of algae. Bio Guard Back-Up's residual effectiveness stays in the water until it is needed and tends to stabilize the total chemical treatment.
- 40% active ingredient
- Powerful wetting agent
- Prevents all types of algae growth
- Works with chlorine
- Does not evaporate
- Works in all pH ranges
Directions:
- Use 32 oz. per 25,000 gallons initially
- Use 2 oz. per 5,000 gallons every two weeks
- Distribute directly into the pool water
