How to Winterize a Concrete Pool

How to Winterize a Concrete Pool

Are you looking for the best way to protect your concrete pool during the winter months? Winterizing your pool is essential to prevent damage and ensure it is ready for use when the warmer weather returns. In this article, we will provide you with a step-by-step guide on how to properly winterize your concrete pool, so you can enjoy it for years to come.

How to Winterize a Concrete Pool

Cleaning the Pool

When winterizing your concrete pool, it is important to start by thoroughly cleaning it to prevent any damage during the colder months.

1.1 Removing Debris

Begin by removing any leaves, twigs, and other debris from the surface of the pool. This can be done using a skimmer or a leaf net to scoop out any floating debris.

1.2 Brushing the Walls and Floor

Next, brush the walls and floor of the pool to remove any algae or dirt buildup. Use a pool brush with stiff bristles to scrub the surfaces and loosen any stubborn debris.

1.3 Vacuuming the Pool

Finally, vacuum the pool to remove any remaining dirt and debris from the bottom. A pool vacuum can help to ensure that the pool is completely clean before winterizing it.

2. Balancing Chemicals

During the winter months, it’s important to properly balance the chemicals in your concrete pool to ensure it stays in good condition and is ready for use when the weather warms up. There are a few key steps to take in order to achieve this:

2.1 Adjusting pH Levels

One of the first things to do when winterizing your concrete pool is to adjust the pH levels. Ideally, the pH should be between 7.2 and 7.6 to prevent any damage to the pool surface. You can use a pH testing kit to determine the current levels and then add pH increaser or decreaser as needed to get it within the recommended range.

2.2 Adding Winter Algaecide

To prevent algae growth during the winter months, it’s important to add a winter algaecide to your pool. This will help keep the water clear and clean, even when the pool is not being used regularly. Follow the manufacturer’s instructions for the correct dosage based on the size of your pool.

2.3 Shocking the Pool

Lastly, it’s a good idea to shock the pool before closing it for the winter. This will help eliminate any bacteria or contaminants in the water and ensure that the chemicals are properly circulated throughout the pool. Choose a pool shock product specifically designed for winterizing pools and follow the instructions carefully for the best results.

3. Draining and Winterizing

3.1 Lowering Water Level

Before winterizing your concrete pool, it is important to lower the water level. This helps prevent damage from freezing temperatures by allowing room for the water to expand without causing cracks in the pool walls. You can use a submersible pump to gradually lower the water level to the recommended height.

3.2 Blowing Out Pipes

After lowering the water level, it is crucial to blow out the pipes to prevent them from freezing and bursting during the winter months. This can be done using a compressor to push out any remaining water in the pipes. Make sure to start with the furthest pipe from the pool and work your way back to ensure all water is removed.

3.3 Adding Winter Pool Cover

Once the water level is lowered and the pipes are blown out, it is time to add a winter pool cover. This will help protect your concrete pool from debris and harsh winter weather. Make sure to choose a cover that fits securely over your pool and is designed for winter use. Additionally, consider adding a cover pump to prevent water buildup on the cover and maintain its effectiveness throughout the winter season.


In conclusion, winterizing a concrete pool is essential to protect it from damage during the colder months. By following the steps outlined in this article, such as balancing the water chemistry, lowering the water level, and covering the pool, you can ensure that your pool remains in top condition and ready for use when the warmer weather returns. Remember, proper winterization not only extends the life of your pool but also saves you time and money on repairs in the long run. So don’t wait until it’s too late – start winterizing your concrete pool today!