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How to Winterize Your Pool in Sioux Falls: 8 Expert Tips for 2025

As the leaves fall and the chill of autumn creeps in, it’s time to start thinking about putting your pool to bed for the winter. Properly closing your pool isn’t just about…

Splash City TeamJune 12, 2025 2 min read
Sioux City Pool Sales

As the leaves fall and the chill of autumn creeps in, it’s time to start thinking about putting your pool to bed for the winter. Properly closing your pool isn’t just about skipping the cold months—it’s about protecting your investment and ensuring an easy, hassle-free opening next spring.

At Splash City, we’ve helped countless Sioux Falls pool owners get winter-ready. Here are eight expert tips to help you close your pool the right way in 2025.

1. Clean It Up & Balance the Water

Start with a deep clean. Skim leaves, vacuum the floor, and scrub the walls. Then test and balance your water:

Shock your pool one last time to eliminate lingering bacteria or algae. Clean, balanced water is your best defense against winter damage.

  • pH: 7.4–7.6
  • Alkalinity: 100–150 ppm
  • Calcium Hardness: 200–400 ppm

2. Lower the Water Level

To protect against freezing and ice expansion, lower the water level to 4–6 inches below the skimmer. This prevents costly damage to your skimmer, tiles, and return jets.

3. Drain and Store Pool Equipment

Don’t risk cracked or busted equipment!

A little effort now can save you big on repairs later.

  • Drain water from pumps, heaters, and filters
  • Backwash sand filters
  • Clean cartridge or DE filters
  • Store everything indoors if possible

4. Add Winterizing Chemicals

Winterizing kits make this step easy. Look for:

These chemicals keep your water in great shape all season long.

  • Algaecide: Prevents algae growth
  • Stain & Scale Preventer: Protects surfaces
  • Winter Floater: Maintains chlorine levels over time

5. Cover It Right

Choose a high-quality winter pool cover—preferably solid to block out sunlight and reduce algae growth. Make sure it’s securely fastened and consider adding a leaf net for easier spring cleanup.

6. Protect Pool Accessories

Remove ladders, diving boards, handrails, and slides. Store them in a dry area to protect against rust, cracking, and wear. They'll last longer and look better when you're ready to reinstall.

7. Winterize Plumbing Lines

Use a shop vac or air compressor to blow out water from all plumbing lines. Follow up with pool-safe antifreeze to prevent pipes from freezing and cracking during deep cold snaps.

8. Do Monthly Check-Ins

Just because your pool is closed doesn’t mean you can ignore it. Every few weeks, check the cover, clear off leaves and snow, and make sure no animals or weather have caused damage. A little vigilance goes a long way.

Trust Splash City for All Your Pool Needs

Winterizing your pool is all about preparation—and Splash City is here to help every step of the way. From winter chemical kits to expert advice, we’re your trusted partner for pool care in Sioux Falls and beyond.

Have questions or need supplies?

📞 Call us at 877.289.2713

📧 Email info@splashcityinc.com

🌐 Visit splashcityinc.com to browse pool and spa products

Whether you need a new Sioux Falls hot tub, updated accessories, or help closing your pool, we’ve got your back year-round.

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