If chlorine and acid are used properly this product may not be necessary.
Chemicals needed to close above ground pool.
Chlorine free pool shock.
Acid either in the form of liquid muriatic acid or dry sodium bisulphate.
Add 1 day before closing the pool.
Soda ash either in granular or block form if too much acid is used.
Other winter pool chemicals include pool antifreeze and winter pool enzymes.
Pour into the pool just before covering.
Several days prior to closing an above ground pool test the water for ph total alkalinity calcium hardness and chlorine.
Algaecide either in the form of liquid or dry granular or tablet.
How to close an above ground pool.
Winterizing chemical kits are available to help protect water quality during the winter months.
What pool closing chemicals do you need.
Add 2 days before closing the pool.
Place into the pool just before covering.