Winterizing or Closing Your Pool
Summer was another great season at Sunny’s Pools & More! We loved helping our Michigan customers enjoy crystal-clear pools and relaxing spas all summer long. Now that temperatures are starting to drop, it’s time to prepare your swimming pool for winter. Proper pool closing and winterizing in Michigan is essential to protect your investment from freezing temperatures, snow, and ice damage.
Most pool owners in Michigan close their pools shortly after Labor Day or before the first hard freeze. Whether you have an above-ground or inground pool, closing your pool correctly prevents costly repairs, algae growth, plumbing damage, and surface staining. The good news? With the right pool closing products and a simple step-by-step approach, winterizing your pool doesn’t have to be complicated.
Why Proper Pool Closing Matters in Michigan
Michigan winters can be harsh. Freezing water expands and can crack plumbing lines, damage pool pumps, filters, heaters, and even pool walls. Proper winterization:
- Prevents freeze damage to pipes and equipment
- Reduces algae growth during winter months
- Protects pool liners and surfaces
- Makes spring opening faster and easier
- Saves money on costly repairs
Taking the time to close your pool correctly now ensures a smooth and stress-free pool opening next spring.
What Do You Need to Close Your Pool?
We recommend beginning your pool closing process about one week before your final swim. Start by thoroughly cleaning your pool, brushing walls, vacuuming debris, and balancing your water chemistry. Lower the water level according to manufacturer recommendations and prepare your equipment for winter.
Before adding winter chemicals, test your water using alkaline test strips and full water testing kits. Balanced water chemistry is critical before shocking and treating your pool for winter.
Common pool closing chemicals include:
- Pool Serum Total Maintenance – Advanced enzyme treatment for winter protection
- Baquacil Chlorine Free – Alternative sanitizing systems
- Nature2 – Mineral-based water care solutions
- SeaKlear® – Clarifiers and phosphate removers
- Pool shock treatments
- Winter algaecide
- Metal sequestrants to prevent staining
Not sure what your pool needs? Stop by any Sunny’s Pools & More location and our team will help you choose the right winterizing products for your pool size and system.
Opening / Closing Pool Kits
One of the most convenient options we offer is the trusted Poolife® Pool Care Collection. 
The Poolife opening/closing kit makes winterizing your pool simple and efficient. This all-in-one pool closing system includes:
- Open/Close Algistat
- TurboShock® shock treatment
- Metal-removing agent
Designed for pools up to 20,000 gallons, this kit eliminates guesswork and ensures your pool water is properly treated for the off-season.
Poolife® kits and all essential winterizing chemicals are available at every Sunny’s Pools & More location. You can also shop online for pool closing chemicals, covers, and accessories for convenient pickup.
Need Help Closing Your Pool?
If you have questions about closing your pool in Michigan or need help selecting the right winterizing kit, our knowledgeable team is here to help. Visit one of our stores or contact us today to make sure your pool is properly protected for the winter season.
Close it right now — open it easy next spring!