Kills Algae and Bacteria

Algae can turn pool water green. HTH Super 3" Chlorinating Tablets destroy algae and bacteria to keep the water looking blue.

1 Tablet Works for up to 1 Week

This easy-to-use chlorine tablet dissolves slowly and effectively to sanitize your pool. One tablet keeps working for up to one week per 10,000 gallons.

Formulated to Prevent Chlorine Loss

HTH Super 3" Chlorinating Tablets are formulated with cyanuric acid (CYA) to help protect against chlorine loss, and they contain built-in algae protection and clarifier.

1. Test and Balance pH Levels

First, make sure the pH of the water is balanced. If the pH is too high or too low, the chlorine sanitizer won’t work as effectively. The ideal pH range is between 7.2 and 7.8.

2. Proper Sanitization Requires Circulation

HTH Super 3" Chlorinating Tablets release chlorine slowly. Run your pump at least 8 hours per day (or night) to ensure your water is properly sanitized.

3. Apply to Feeder, Floater or Skimmer

Place one tablet in pool feeder, floater or skimmer per 10,000 gallons of water every week or as often as needed to maintain a chlorine residual of 1-4 ppm. Do not add directly to the pool as this can cause damage to pool surfaces.

Many factors work against the cleanliness of your pool. Sunlight breaks down the chlorine, causing the water to lose up to 5 ppm of chlorine in one sunny afternoon. Swimmers unintentionally release bacteria and contaminants like sweat, makeup and sunscreen. And storms can bring dust, pollen, leaves and algae spores. Shocking is one of the best ways to protect your pool water and keep it crystal clear.

In ideal circumstances, shocking your pool once a week will keep it looking clean and clear, but heavy rainfall, signs of algae, heavy use or long periods of sunny weather may require more frequent treatment. Sundown is the best time to shock your pool, so the chlorine can work to restore water clarity without the sun’s harsh ultraviolet rays. Brush the pool floor and walls to help expose settled contaminants to the chlorine.

First, brush the floor and walls of your pool to loosen the algae and break down the cells’ outer membrane to allow the chemicals to penetrate. Next, shock the pool with an HTH shock treatment, following label instructions. After 24 hours, use an HTH algaecide to treat the effected area, then brush the pool again. Keep the pump running overnight and continue to use the algaecide once a week to prevent future growth.

3.5 out of 5 stars    766 ratings

3.5 out of 5 stars