how to winterize a sand pool filter

How to Winterize a Sand Pool Filter

As the summer season comes to an end and the temperature starts to drop, it's important to prepare your pool for the winter months. One of the most essential tasks in winterizing your pool is to winterize your sand pool filter. In this article, we'll outline the steps you need to take to winterize your sand pool filter.

Understanding Your Sand Pool Filter

Before we dive into the steps to winterize your sand pool filter, it's helpful to understand how it works. Sand pool filters are the most popular type of pool filter due to their low maintenance and effectiveness in removing debris and impurities from the water. Sand filters operate by passing water through a layer of sand in the filter tank, where impurities are trapped and clean water is returned to the pool. Over time, the sand becomes clogged with debris and requires backwashing to clean it out.

Step 1: Backwash the Sand Filter

The first step in winterizing your sand pool filter is to backwash it. Backwashing is the process of reversing the flow of water through the filter to flush out any debris that has accumulated. Start by turning off the pool pump and moving the multiport valve to the backwash position. Turn the pump back on and let it run until the water in the sight glass appears clear. Once the water is clear, turn off the pump and move the valve to the rinse position.

Step 2: Add Winterizing Chemicals

After backwashing the sand filter, it's time to add winterizing chemicals to the pool water. Winterizing chemicals are designed to prevent algae growth and protect the water from freezing during the colder months. Follow the instructions on the package to determine how much of each chemical to add based on the size of your pool.

Step 3: Clean the Filter Tank

Once the winterizing chemicals have been added to the pool, it's time to clean the sand filter tank. Start by turning off the pump and closing the valves that lead to the filter. Remove the drain plug from the bottom of the filter tank to drain any remaining water. Next, remove the sand from the filter tank using a shop vac. Be sure to wear gloves and a face mask to protect yourself from the dust.

Step 4: Store the Sand

After removing the sand from the filter tank, it's important to store it properly. Start by pouring the sand onto a tarp and spreading it out. Allow it to dry completely in the sun for at least two days. Once the sand is dry, store it in a dry, covered area.

Step 5: Cover the Filter

The final step in winterizing your sand pool filter is to cover it. This will protect it from the elements and prevent debris from getting inside. Use a fitted cover designed specifically for your filter or create your own with a tarp and bungee cords. Be sure to secure the cover tightly to prevent it from blowing away in the wind.

Conclusion

Winterizing your sand pool filter is an important task that will help protect it from damage during the winter months. By following these steps, you can ensure that your filter will be ready to use again when the weather warms up. Remember to always follow the manufacturer's instructions when working with chemicals and equipment to ensure your safety and the proper functioning of your pool.