Winterizing Algaecide

Winterizing Algaecide

This unique algaecide is formulated specifically for pool closing in the winter. One easy treatment is all it takes to kill and prevent algae from growing for up to three months, making for an easy Spring opening. Your pool water will be as sparkling clear in the spring as when you closed it in the fall.

Our Winter Algaecide also helps other winter chemicals work more effectively over a wider range of pH levels, which is very important during the winter months.

Winterizing pool algaecide is a powerful bactericide and algaecide with staying power, copper based algaecide is formulated to stay potent over a broad range of pH and temperature values. For pools with mesh safety covers, additional algaecide is recommended during early spring, 4-8 weeks before opening the pool. 


  • 1 Quart-sized bottle treats up to 20,000 gallons
  • Winter Algaecide is compatible with our Winter Closing Chemical Kits


Winterizing Algaecide
Item#: W1140
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