It’s that time of year to start thinking about closing down your pool for the season, and at Mr. B’s, we want you to do it the right way. Before you can winterize your pool, you need to have your water tested to be sure your pH, alkalinity and calcium levels are properly balanced and there are no metals in the water. 

Below are the most important pool winterization tips and steps you should follow to experience a smooth reopening in the spring. 

1. Be sure there are no leaks in your liner. Any leak must be found and repaired. You can repair them with an underwater repair kit.  

2. Vacuum and brush your pool to make sure it is clean and has no leaves or debris in it. When you winterize your pool properly, your pool will be clean and clear when you open it next spring.

3. Remove all pool accessories such as ladder and steps. Clean them and store them in a safe place.

4. If you are using an air pillow as an ice equalizer, inflate and let it stand for at least 24 hours.

5. Mr. B’s highly recommends that you chemically clean your filter before you winterize your pool. 

6. Circulate your pool chemicals for at least 24 hours to assure even distribution of your winter pool chemicals.

7a.  If you are using CHLORINE as a sanitizer, follow the instructions listed below.

7b. If you are using BAQUACIL or BAQUACIL CDX as a sanitizer, follow the instructions listed below.

8a. If you are using an ice equalizer, drain your pool water down approximately 4 to 6 inches below the skimmer. Loosely tie off the ice equalizer in the center of your pool. Do NOT plug your return line.

8b. If you have a compensator, there is no need to drain down your pool water. Just take out the skimmer basket and insert the compensator in the bottom of the skimmer and tighten. Plug the return line. Note: If you have a Doughboy 2094 or 2095 skimmer, you may need compensator extensions.  

9. Cover your pool and secure with cable and turnbuckle. Put approximately 2” of water on top of the cover to hold it down to prevent damage to the cover or to the top seats of your pool.

10. Mr. B’s suggests that you remove your filter from your pool and store it in an area where it will not freeze. Leaving your filter outside increases the possible damage to your pump or tank.

11. Monitor the amount of rain water and snow that accumulates on the top of your cover over the winter. Drain excess water off the cover, when you can, to take the stress off the cover.

Suggested Baquacil and Baquacil CDX Dosages for Proper Winterization

Be sure to allow all chemicals to circulate for at least 24 hours before you cover your pool.

10,000 Gallon Pool
Top up BAQUACIL to 50 ppm
Add 1 gallon BAQUACIL OXIDIZER
Add 2 pints BAQUACIL CDX

OPTION
Add 5-6oz BAQUACIL ALGICIDE

15,000 Gallon Pool
Top up BAQUACIL to 50 ppm
Add 2 gallons BAQUACIL OXIDIZER
Add 4 pints BAQUACIL CDX

OPTION
Add 10 -12oz BAQUACIL ALGICIDE

20,000 Gallon Pool
Top up BAQUACIL to 50 ppm
Add 3 gallons BAQUACIL OXIDIZER
Add 6 pints BAQUACIL CDX

OPTION
Add 16 – 18oz BAQUACIL ALGICIDE

25,000 Gallon Pool
Top up BAQUACIL to 50 ppm
Add 4 gallons BAQUACIL OXIDIZER
Add 8 pints BAQUACIL CDX

OPTION
Add 20 – 24oz BAQUACIL ALGICIDE

Suggested Chlorine Dosages for Proper Winterization

Be sure to allow all chemicals to circulate for at least 24 hours before you cover your pool.

10,000 Gallon Pool
Add 1lb POOLIFE TURBO SHOCK
Add ½ qt POOLIFE DEFEND +
Add ½ qt POOLIFE POOL PLUS

15,000 Gallon Pool
Add 2lbs POOLIFE TURBO SHOCK
Add ¾ qt POOLFIE DEFEND +
Add ¾ qt POOLIFE POOL PLUS

20,000 Gallon Pool
Add 3lb POOLIFE TURBO SHOCK
Add 1qt POOLIFE DEFEND +
Add 1qt POOLIFE POOL PLUS

25,000 Gallon Pool
Add 4lbs POOLIFE TURBO SHOCK
Add 1 ½ qt POOLIFE DEFEND +
Add 1 ½ qt POOLIFE POOL PLUS