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Concentrated enzyme formulation to be used during pool openings and pool closings.
FEATURES
- Helps in keeping water beautiful all year long, regardless of the season
BENEFITS
- Compatible with all sanitizing systems and water additives
APPLICATIONS
- POOL OPENING
Circulate any new water with existing water in the pool. Balance the pH, total alkalinity, and calcium hardness levels. Treat water with pool chemicals for opening. One week later, add entire quart bottle of Open-Close directly to the pool. - POOL CLOSING WITH COVER
Treat the pool as normal for the offseason and circulate. Drain water level to winterizing levels. Add one quart of Open-Close directly to the pool. 1 quart treats up to 20,000 gallons of water. Brush pool walls then cover. - POOL CLOSING WITHOUT COVER
Treat the pool as normal for offseason and circulate. 1 week later, add qt bottle of Open-Close directly to pool. 1 qt treats up to 20,000 gal of water. During extended period of unusual heat and/or rain or snow precipitation, add additional qt.
WARNING: The following product(s) can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.p65warnings.ca.gov