How to Close Your Pool for Winter, the Right Way

Inground swimming pool with cover on it and water pump during a snowfall in winter

As temperatures start to drop in Minnesota, it’s time to think about preparing your pool for the cold months ahead. Properly closing your pool protects it from freezing damage, keeps the water cleaner, and makes reopening next spring much easier. Whether you maintain your pool yourself or get help from the pros with a quick search online for pool closing services near me, following the right steps now will save time, money, and stress later.

Step 1: Clean and Balance the Water

Before closing your pool, start with a thorough cleaning. Skim out leaves, brush the walls, and vacuum any debris from the bottom. Next, test and balance your water chemistry by adjusting pH, alkalinity, and calcium hardness to ideal levels. Balanced water helps prevent corrosion, staining, and scale buildup while your pool sits unused.

Pool with ice and slush after snow storm. Inground pool with pool cover and ice layer in backyard with deep snow. Winterizing pool for cold, freezing or sub zero temperature.

Step 2: Shock Your Pool and Add an Algaecide

Even when the water looks clear, algae can grow during the off-season. Shocking your pool with chlorine helps kill lingering bacteria, while adding an algaecide provides long-term protection. This extra step ensures your pool water stays fresh and easier to treat when spring returns.

Step 3: Lower the Water Level and Drain Equipment 

Minnesota winters are harsh, and freezing pool water can cause costly damage. Lower your water level below the skimmer opening to prevent overflow and ice expansion. Drain your pump, filter, and heater completely, and disconnect any hoses or fittings. Blow out the lines if possible to remove trapped water that could freeze and crack your plumbing.

Step 4: Install and Secure Your Pool Cover 

Once your pool is clean, balanced, and the water level is lowered, it’s time to cover it for the season. Choose a high-quality winter pool cover that fits tightly across your pool to keep out debris, sunlight, and pests. Make sure it’s properly secured with water bags, clips, or cables so it can withstand snow and strong winter winds. A well-fitted cover is your pool’s best protection against harsh weather and will make spring opening much easier.

Step 5: Check on Your Pool Periodically

Even during winter, it’s a good idea to check your pool occasionally. Make sure the cover remains secure and that water levels under the cover stay consistent. If snow piles up, gently brush it off to avoid putting strain on your cover.

Protect Your Pool Investment with All Poolside

Closing your pool properly helps ensure a smooth start when warmer weather returns. If you’d rather not tackle the process yourself, All Poolside is here to help. Our experts know Minnesota’s winter conditions inside and out and can handle every step of your pool closing safely and efficiently. Contact All Poolside today to schedule your professional pool closing service and rest easy all winter long.

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