How to Winterize or Close your BioGuard® Soft Swim® or biguanide pool

UP TO 10,000 GALLONS
1 bottle Soft Swim® "C"
PLUS Top Soft Swim® "B" level to 50 ppm
up to 1 quart BioGuard® Winter Algicide 40
Plus Top off Optimizer Plus® (about 5 lb)

10,000 TO 20,000 GALLONS
2 bottles Soft Swim® "C"
PLUS Top SoftSwim® "B" level to 50 ppm
1 - 2 quarts BioGuard® Winter Algicide 40
Plus Top off Optimizer Plus® (about 10 lb)

20,000 TO 30,000 GALLONS
3 bottles Soft Swim® "C"
PLUS Top Soft Swim® "B" level to 50 ppm
2 - 3 quarts BioGuard® Winter Algicide 40
Plus Top off Optimizer Plus® (about 15 lb)

OVER 30,000 GALLONS
4 bottles Soft Swim® "C"
PLUS Top Soft Swim® "B" level to 50 ppm
4 quarts BioGuard® Winter Algicide 40 (use 1 qt per 10,000 gallons or any part of)
Plus Top off Optimizer Plus® (about 20 lb)

ALL POOLS:
Adjust pH as needed
Clean Liner with BioGuard® Off the Wall or Surface Cleaner
Clean Filter with Soft Swim® Filter Cleaner
Clean ladder treads and Solar Blanket with BioGuard® Stow Away
Allow winter chemicals to circulate for 1 hour
Leave Water level at normal swimming level
See Fall Winterizing Checklist for more detailed information

Watch our video of How to Prepare Your Pool for Winterizing

Download FREE brochures to learn about pool care needs & problems.