HTH™ Pool Care Shock Advanced: Pool Shock for Algae
Stay all clear for cannonballs! This fast-dissolving, convenient 4-in-1 pool shock for algae formula kills bacteria and algae, reduces chlorine odor and irritation and quickly restores crystal clarity.
- Multi-functional shock treatment for weekly use
- Use weekly to solve 90% of pool water problems
- Pool shock for algae restores crystal clarity in 24 hours
Visibly brilliant sparkle
This Cal Hypo based formula sanitizes without adding cyanuric acid (CYA) to prevent overstabilization or chlorine lock.
Compatible with all swimming pools
Our pool shock for algae is great for all pool types including vinyl-lined pools and saltwater systems.
You’re all clear with HTH™
For best results, use with HTH™ 6-Way Test Strips to test and balance your swimming pool water twice weekly.
How to use
HTH™ Shock Advanced: Pool Shock for Algae
1. Add Directly To Water Or Skimmer
Follow the on-pack instructions according to your swimming pool size.
Follow the on-pack instructions according to your swimming pool size.
2. Repeat Weekly
For best results, use HTH™ Shock Advanced as part of your weekly pool care routine to keep free available chlorine levels between 1 and 4 ppm.
For best results, use HTH™ Shock Advanced as part of your weekly pool care routine to keep free available chlorine levels between 1 and 4 ppm.
