Winterizing Your Pool: Essential Steps to Protect Your Investment

Intro

Owning a pool is a rewarding investment, but like any major home feature, it requires proper maintenance—especially when the seasons change. As the colder months approach, winterizing your pool becomes an essential task. Failing to do so can lead to costly repairs, damaged equipment, and even structural issues come spring. At Big Becks, we believe your pool should be protected all year round. That’s why we’ve put together this comprehensive guide to help you prepare your pool for winter the right way. With a few strategic steps, you can ensure that your investment stays safe, clean, and ready for enjoyment next season.

Step 1: Clean and Balance the Water

The first and most important step in winterizing your pool is thoroughly cleaning it. Skim the surface to remove leaves, bugs, and other debris. Follow up with a vacuum and brush down the walls and floor to eliminate algae and sediment. A clean pool is less likely to develop staining or waterline buildup while it’s covered.

Once clean, it’s time to balance your pool chemistry. Test and adjust the water to the recommended levels: pH between 7.2–7.6, alkalinity between 80–120 ppm, and calcium hardness between 180–220 ppm. Shock the pool with chlorine or a non-chlorine oxidizer to kill any lingering contaminants. Proper chemical balance is key to preventing corrosion, scaling, and algae growth during the off-season.

Step 2: Lower the Water Level

Depending on your pool type and the kind of cover you’ll be using, you may need to lower the water level to prevent freezing damage. For most in-ground pools, it’s ideal to lower the water just below the skimmer opening. This prevents water from entering the plumbing system where it can freeze and crack pipes.

If your pool has tile, don’t lower the water too much—doing so can expose the tile to the air and cause it to crack during temperature swings. Big Becks recommends working with a professional to determine the optimal water level for your specific pool configuration.

Step 3: Drain and Store Pool Equipment

Next, remove and drain all accessories and components that won’t be in use during the winter. This includes pool ladders, diving boards, handrails, skimmer baskets, and automatic cleaners. Thoroughly rinse and dry these items before storing them in a dry, protected area to prevent rust and wear.

Your filtration system and pool heater also need special attention. Drain the pump, filter, and heater completely to eliminate any trapped water that could freeze and expand. Use a shop vac or air blower to push water out of pipes and valves. Plug return lines and install winterizing plugs in skimmers and drains to prevent water infiltration.

Step 4: Add Winter Chemicals

To protect your water and surfaces during the colder months, apply winterizing chemicals. These typically include an algaecide, a stain and scale preventer, and a long-lasting chlorine floater. These products help maintain water clarity and reduce the buildup of contaminants while the pool is not in use.

Use only chemicals designed specifically for winterizing, and follow the manufacturer’s instructions carefully. Overdosing or underdosing can cause unintended damage or render the treatment ineffective. If you’re unsure, the Big Becks team can recommend a tailored winter chemical kit based on your pool size and usage.

Step 5: Cover the Pool Securely

A high-quality pool cover is one of the most effective ways to protect your pool throughout winter. Choose a strong, durable cover that fits your pool’s shape and dimensions. Solid covers prevent debris and sunlight from entering the pool, reducing algae growth, while mesh covers allow water to drain through while still keeping leaves and debris out.

Secure the cover tightly using water bags, straps, or a locking system to ensure it stays in place during windy weather. At Big Becks, we offer custom safety covers that not only provide strong protection but also add an extra layer of security for families with pets and small children.

Step 6: Inspect Regularly Throughout Winter

Even after your pool is winterized and covered, it’s wise to check on it periodically. After heavy storms or extreme temperature drops, inspect the cover for sagging, tears, or accumulated debris. Look around the pool for signs of shifting ground or water leakage, and ensure your winter plugs and cover fasteners remain intact.

Regular off-season inspections can help you catch minor issues before they become major problems. At Big Becks, we offer winter pool care services and inspections to give homeowners added peace of mind through the colder months.

Conclusion

Winterizing your pool isn’t just a seasonal chore—it’s an insurance policy for your backyard oasis. From the precision of the line blowout to the strength of your safety cover, each step prevents damage and maintains your property’s value. At Big Becks Pools and Pavers, we take the worry out of winter with professional closing services and high-quality Loop-Loc installations. Protect your investment today so you can dive back in with confidence next spring.

CLICK HERE to schedule your professional 2026 pool winterization and ensure your system is protected by the experts.

Frequently Asked Questions: Winterizing Your Pool

Why is “Line Blowing” considered the most critical part of the winterization process?

In our 2026 climate, unpredictable “flash-freeze” events are common on Long Island. Water expands by approximately 9% when it freezes; if even a small amount of water remains trapped in your PVC plumbing, the resulting pressure can easily snap pipes deep underground. A professional line blowout uses high-volume, low-pressure air to ensure every drop of moisture is purged from the system, followed by the installation of airtight expansion plugs to keep the lines dry and protected until spring.

Can I use standard automotive antifreeze in my pool plumbing?

No, you must never use automotive antifreeze in your pool. Automotive antifreeze contains ethylene glycol, which is highly toxic to humans, pets, and the local environment. For pool plumbing, you must exclusively use non-toxic, propylene glycol-based “Pool Antifreeze” (usually pink in color). This product is specifically designed to protect pool pipes down to -50°F while remaining safe for swimmers when the system is reopened in the spring.

How does a safety cover support my pool’s structural integrity during heavy snow?

A properly tensioned safety cover, like those from Loop-Loc, acts as a structural shield. When heavy snow accumulates, the cover is designed to “give” slightly until it rests on the water surface below, which then provides secondary support for the weight. This prevents the cover from pulling on the anchors and helps distribute the load evenly across the pool walls. Maintaining the correct water level—typically 15” to 18” below the deck for mesh covers—is vital to ensure this support system works correctly during a blizzard.

How do winter chemicals prevent “liner staining” while the pool is dormant?

When a pool sits stagnant for six months, minerals like iron and copper can settle out of the water and create permanent stains on your liner or plaster. Additionally, organic matter that sneaks under the cover can cause “tannin” stains. Professional winterizing kits include sequestering agents that keep these minerals in suspension and high-strength winter algaecides that prevent organic growth even as the water warms up in early spring, ensuring a stain-free opening.

What happens if I forget to lower the water level?

If the water level remains at the summer height, it will stay inside the skimmer throat and the tile line. When that water freezes, it can crack the plastic skimmer housing or pop tiles off the wall due to the pressure of the ice. Lowering the water level just below the skimmer protects these vulnerable components. However, it is a delicate balance; lowering it too much can remove the necessary support for your pool cover, which is why professional guidance is often recommended.