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Top 10 Pool Closing Tips
As summer winds down, it is time to start getting your pool ready for the cold winter months. Properly winterizing your pool will protect your equipment from ice damage, keep your water clean, and help ensure an easy opening in the spring. Winterizing your pool may seem complicated, but with a little preparation, it can be a very simple and pain-free process. Leslie’s Top 10 Pool Closing Tips will help you close your pool quickly and easily!
Preparing Your Pool for Winter |
1. Begin Winterizing One Week Before Closing Your Pool
One week prior to closing your pool, add a phosphate remover to help keep algae out
Pool Perfect + PHOSfree ![]() |
PHOSfree |
Pool Magic + PHOSfree |
2. Brush and Vacuum To Remove All Debris
Cleaning your pool before closing prevents algae and makes your spring opening even easier
Pool Brushes ![]() |
Pool Cleaners |
Pool Nets |
3. Manage Your Water Level
FREEZING - Water should be 4-6 inches below: skimmer (vinyl-lined) or tile line (plaster)
NON-FREEZING - Water should be filled to the top, almost to the point of overflowing
4. Balance the Pool Chemistry
Total Alkalinity should be between 80-120 ppm, pH level should be between 7.4-7.6
Pool Adjusters ![]() |
Alkalinity Up |
Soda Ash |
5. Shock and Chlorinate Your Pool
Shocking kills any bacteria that might linger in your pool during the winter
Winter Chemicals ![]() |
Basic Winter Bundle |
Super Winter Bundle |
6. Backwash Your Filter
Allow the pump to run for a full cycle before backwashing and chemically cleaning your filter
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7. Drain Pool Lines and Add Antifreeze (for freezing temperatures only)
This prevents the costly repairs that come from burst of damaged pipes
Pool Line Antifreeze ![]() |
8. Install Air Pillow
Inflate the air pillow using an air pump and place in the center of the pool
Air Pillow ![]() |
9. Install A Safety Cover, Winter Cover or Leaf Net
Protect your pool and family with a secure cover
Safety Covers ![]() |
Winter Cover |
Leaf Net Cover |
10. Monitor Chemical Balance Monthly
Routinely check water chemistry, and consult a Leslie’s Service Technician or Store Associate if chemicals become unbalanced
Leslie's Winter Service ![]() |
Winter Chemicals |






