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Writer's pictureDan Stebner

Essential Steps for Closing Your Backyard Pool for Winter: A Guide from Vancouver Island Pools

As the vibrant summer days give way to the cooler temperatures of fall, it's time to start thinking about closing your backyard pool for the winter. Properly winterizing your pool is crucial, even here on Vancouver Island, where our temperate climate can still throw unexpected weather at us. Following these steps will ensure your pool remains in top condition and will be ready to enjoy when the warmer weather returns.


1. Clean Your Pool Thoroughly

Before you shut down your pool for the season, it's essential to clean it thoroughly.

Remove leaves, debris, and any floating objects. Brush the walls and floor to remove any algae or buildup. Vacuum the pool to ensure it's spotless. This step is crucial because any remaining debris can lead to staining or algae growth over the winter.


A skimmer cleaning leaves from a pool
Clean your pool before closing for the season.

2. Balance the Water Chemistry

Proper water balance is vital to prevent damage and ensure your pool’s longevity. Test and adjust the water’s pH, alkalinity, and calcium hardness levels. Ideally, you should aim for:

  • pH Level: 7.2 - 7.6

  • Total Alkalinity: 80 - 120 ppm

  • Calcium Hardness: 180 - 220 ppm

Balancing the water chemistry helps prevent scaling, corrosion, and staining. If you're not sure how to balance these levels, consider hiring a professional to help.


A water testing kit is used to test the amount of chemicals in the pool

3. Lower the Water Level

Once your pool is clean and balanced, lower the water level. The water should be below the skimmer openings to prevent freezing and potential damage. This is particularly important on Vancouver Island, where temperatures can dip close to freezing, even if we generally have a milder climate.


4. Add Winterizing Chemicals

To protect your pool from the winter months, add winterizing chemicals. These typically include:

  • Pool Antifreeze: Prevents water in the pipes from freezing.

  • Winterizing Algaecide: Helps prevent algae growth during the off-season.

  • Enzyme Products: Break down organic debris and reduce staining.

Follow the manufacturer's instructions for the correct dosage based on your pool size.


An opening/closing kit for pools is shown.


5. Drain and Winterize Equipment

Drain all water from the pool equipment, including the pump, filter, and heater. Water left in these components can freeze and cause damage. Make sure to remove and store any removable equipment, like ladders or diving boards. If you’re unsure how to do this properly, it’s worth hiring a professional to avoid any costly mistakes.


6. Cover Your Pool

Covering your pool is a final, critical step. Use a high-quality, durable pool cover to keep out debris and prevent any potential water accumulation. On Vancouver Island, you’ll want a cover that can withstand both rain and wind. Ensure the cover is secure and properly fitted to avoid any sagging or water pooling on top.


7. Check Local Regulations

Finally, it’s always a good idea to check any local regulations or guidelines for pool maintenance. Some areas might have specific requirements or recommendations for winterizing pools, and staying informed will help you comply and protect your investment.


Potential Costs Involved

Winterizing your pool can involve several expenses, including:

  • Professional Cleaning and Maintenance: If you opt to hire a professional, expect to pay for their services. This could range from $150 to $500, depending on the size of your pool and the services provided.

  • Winterizing Chemicals: These can cost anywhere from $50 to $200, depending on the products you use and the size of your pool.

  • Pool Cover: A good quality cover might set you back $100 to $500, but it's a worthwhile investment to protect your pool.


Risks of Improper Winterization

Failing to properly winterize your pool can lead to several issues:

  • Algae Growth: If not treated, algae can take over your pool by spring, leading to costly cleanups.

  • Damage to Equipment: Freezing water can damage your pool’s pump, filter, and other equipment, potentially leading to expensive repairs.

  • Staining and Corrosion: Improper chemical balance and debris left in the pool can cause long-term damage to the pool’s surface and equipment.


By following these steps and investing in proper winterization, you’ll safeguard your pool from seasonal damage and ensure it’s in great shape for next season.


If you have any questions or need assistance closing your pool for winter, Vancouver Island Pools is here to help. Enjoy a stress-free winter knowing your pool is protected!



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