Description
Haviland Winter Closing Kit – 20,000 Gallons
The Haviland 20K Gallon Winter Closing Kit is designed for pools up to 20,000 gallons and includes fast-acting Quick Shock and Algae Kill for effective algae control during winterization.
The Quick Shock is a dry granular form of sodium dichlor that eliminates algae and purifies pool water. The Algae Kill (Algae Kil 10) is a liquid algaecide that controls existing algae and helps prevent future growth.
This winter kit is also compatible with saltwater pools for seamless winterization.
Active Ingredients:
- Quick Shock: 99% Sodium Dichloro-s-triazinetrione.
- Algae Kil 10: 10% Alkyl (C14=50%, C12=40%, C16=10%) dimethyl benzyl ammonium chloride, 90% Other Ingredients.
Directions for Using the Chlorinated Winter Kit at Pool Closing:
- Thoroughly clean your pool, including vacuuming any debris, to avoid issues when reopening in the spring. Remove all ladders and accessories.
- Test and balance your pool water to the following parameters: pH 7.2-7.5, Alkalinity 80-150 ppm, Hardness 175-275 ppm, and ensure Iron or Copper is ≤ 0.05 ppm.
- Add the entire contents of the kit 24 hours before lowering the water level:
- Broadcast the Haviland Quick Shock evenly over the pool water.
- Pour the entire bottle of Haviland Algae Kil 10 directly into the pool.
- Lower the water level to the recommended closing level.
- Clean and store all pool equipment.
- Install a high-quality pool cover to keep debris out.
This winter kit helps ensure your pool remains algae-free throughout the winter season, making spring reopening easier.
Features:
- Quick Shock
- Algae Kil 10
- Long Lasting
- EPA Registered


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