How much shock does it take to winterize 18000 gallon pool?

Answer 1

To winterize an 18,000-gallon pool, you'll typically need to add about 1 to 3 pounds of shock (calcium hypochlorite or chlorine shock) per 10,000 gallons of water. This means you would use around 2 to 6 pounds of shock for your pool. It's essential to ensure the chlorine level is adequately raised before closing the pool to prevent algae growth over the winter months. Always follow the manufacturer's instructions and consider testing the water chemistry for optimal results.