10 Essential Pool Closing Equipment Kits for Cold Autumn Days

When the autumn wind starts shaking the leaves loose and the water temperature dips below 60 degrees Fahrenheit, it is time to face the inevitable end of the swimming season. Leaving a pool vulnerable to freezing temperatures and heavy debris is a gamble that leads to cracked pipes, ruined liners, and a green swamp come spring. Investing in the right closing gear now ensures that opening the pool next year is a straightforward weekend chore rather than a multi-thousand-dollar rescue mission.

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Why Proper Autumn Pool Closing Prevents Costly Damage

Water expands by about nine percent when it freezes, exerting immense pressure on anything containing it. In a backyard pool, this expansion can easily crack rigid PVC pipes, rupture filtration tanks, and split skimmer walls. Once the structural integrity of these plumbing lines is compromised, underground leaks can go unnoticed until they wash away the surrounding soil.

Beyond mechanical damage, autumn leaves present a massive biochemical threat to pool water. Dropping foliage decays rapidly, releasing tannins that stain pool liners and organic matter that feeds algae blooms. Closing the pool properly with a reliable cover and the right chemical balance stops this cycle before it starts, keeping the water clear and the surfaces pristine through months of dormancy.

A rushed closing job always costs more in the spring than doing it right the first time. Skipping essential steps like line blowing, plugging, and chemically treating the water guarantees a stressful, expensive opening process. Taking a systematic approach with specialized gear transforms winterization from a dreaded chore into a predictable, protective routine.

Winter Cover – InTheSwim Defender Mesh Pool Cover

A solid winter cover acts as the primary shield for the pool, stopping heavy leaves, branches, and windblown dirt from turning the water into an organic soup. Unlike solid tarps that collect massive, dangerous puddles of melting snow, a high-quality mesh cover allows water to pass through while trapping even the finest debris. This prevents the cover from collapsing under the weight of accumulated precipitation.

The InTheSwim Defender Mesh Pool Cover stands out because of its exceptionally tight weave, which blocks out 99% of sunlight to prevent algae growth while still draining water quickly. Its heavy-duty webbing and reinforced stitching ensure it can handle heavy snow loads without sagging or tearing at the seams. It is designed for simple, secure tensioning using brass anchors and stainless steel springs.

• Material: Commercial-grade polypropylene mesh
• Sunlight Blockage: 99% UV resistance
• Strap Spacing: Standard 5×5 foot grid
• Inclusions: Brass anchors, stainless steel springs, installation tool, and storage bag

When ordering this cover, always measure the pool’s actual water dimensions and select a cover that includes a two-foot overlap on all sides to accommodate coping. For pools with unique steps or water features, custom modifications may be required to get a flush fit. This mesh cover is perfect for homeowners with surrounding trees who want a clean pool in spring without managing a flooded solid cover, but it is not ideal for those who prefer absolute water blockage from fine silt.

Cover Pump – Little Giant APCP-1700 Automatic Pump

Even with a mesh cover, solid safety covers or standard winter tarps will inevitably accumulate gallons of standing rainwater and melted snow. If left unchecked, this heavy pool of surface water strains the cover anchors, stretches the material, and can eventually pull the entire cover into the pool. A dependable cover pump automatically manages this water level, protecting your investment throughout the freezing winter months.

The Little Giant APCP-1700 Automatic Pump is built specifically for this grueling task, featuring an integrated mechanical float switch that activates when water reaches two inches and shuts off when it drops to one inch. It moves up to 1,700 gallons per hour, quickly clearing heavy accumulation before freezing temperatures can turn it into a solid block of ice. The wide, stable base prevents the pump from tipping over on soft or uneven cover surfaces.

• Flow Rate: 1,700 GPH at 0 feet of head
• Activation: Automatic switch (on at 2″, off at 1″)
• Power Cord: 25-foot heavy-duty power cord
• Discharge: Standard 3/4-inch garden hose connection

Users must ensure the discharge hose is run to a low point on the property where draining water will not pool and freeze over walkways. While this pump is a workhorse, it must be cleared of leaves and organic debris periodically to prevent the intake screen from clogging. This pump is a must-have for anyone using solid safety covers or vinyl winter tarps, but it is unnecessary for those with free-draining mesh covers.

Chemical Kit – InTheSwim Deluxe Winterizing Kit

Shutting down a pool without proper chemical treatment is an invitation for algae, staining, and scale build-up. Winterizing chemicals must work over several months in cold water to neutralize organic contaminants and keep minerals from precipitating onto the walls. A pre-measured kit removes the guesswork from this balancing act, ensuring the chemistry remains stable until spring.

The InTheSwim Deluxe Winterizing Kit provides a comprehensive, multi-stage defense system that includes winter shock, a powerful algaecide, a metal stain preventer, and a slow-releasing winterizer floater. This combination ensures that even as the water cools and warms during seasonal transitions, algae cannot gain a foothold. The time-released chemicals are specifically formulated not to damage or bleach vinyl pool liners over long exposure times.

• Pool Capacity: Kits available for up to 10,000, 22,000, and 35,000 gallons
• Kit Contents: Chlorine-free shock, Winterizer algaecide, Stain & Scale inhibitor, slow-release chemical dispenser
• Compatibility: Safe for concrete, plaster, fiberglass, and vinyl liner pools

For the best results, pool chemistry should be perfectly balanced—paying close attention to pH and alkalinity—before adding this kit, and the water temperature must be below 60 degrees Fahrenheit to prevent the chemicals from exhausting themselves too quickly. This kit is perfect for pool owners wanting a convenient, all-in-one chemical regimen that takes the math out of winterizing, but it is not a substitute for thoroughly cleaning and vacuuming the pool prior to application.

Air Pillow – Robelle Ice Equalizer Pool Pillow

In above-ground pools, freezing water expands outward, exerting immense pressure directly against the pool’s metal walls. An air pillow sits in the center of the pool, acting as a sacrificial pressure absorber that compresses when the water freezes. By taking the brunt of the ice expansion, it prevents the pool walls from bowing, warping, or splitting under the strain.

The Robelle Ice Equalizer Pool Pillow is constructed from heavy-duty heavy-gauge vinyl designed to withstand extreme cold without becoming brittle or cracking. It features a reliable leak-proof valve that keeps air trapped inside all winter, even under constant pressure from shifting ice sheets. Its reinforced eyelets on the corners make it simple to center and secure using nylon ropes.

• Dimensions: 4 x 4 feet, 4 x 8 feet, and 4.5 x 15 feet options
• Material: Heavy-duty, cold-resistant vinyl
• Fastening: Corner eyelets for securing ropes

A common mistake is fully inflating the pillow; it should only be filled to 70 to 80 percent capacity to allow room for compression and prevent the seams from popping when ice pushes against it. Secure it firmly in the dead center of the pool using ropes tied to opposite top rails. This is an essential safety item for above-ground pool owners in freezing climates, while in-ground pool owners generally do not require them.

Skimmer Guard – Ultra Gizzmo Skimmer Expansion Plug

The pool skimmer is one of the most vulnerable plastic components on a pool, as it sits right at the freeze line where water naturally accumulates and turns to ice. If water enters the skimmer and freezes, the expansion will crack the outer housing, resulting in an expensive, destructive leak behind the pool wall. A skimmer guard seals the plumbing line while absorbing ice expansion inside the skimmer throat itself.

The Ultra Gizzmo Skimmer Expansion Plug is the industry standard for this job, featuring a durable, hollow corrugated tube that collapses safely when water freezes around it. The integrated threads at the base allow it to screw directly into the skimmer’s bottom drain port, creating a watertight seal without the need for separate plugs. This dual-action design keeps water out of the pipes while safeguarding the skimmer housing.

• Length: 16 inches (for standard skimmers) and 20 inches (for deep skimmers)
• Thread Size: 1.5-inch and 2-inch tapered threads
• Material: High-density, impact-resistant plastic

Ensure you apply Teflon tape to the Gizzmo’s threads before screwing it in to guarantee a completely airtight seal. Always verify whether your pool plumbing requires a 1.5-inch or 2-inch thread size before purchasing. This tool is a necessity for any pool owner with an in-ground skimmer in freezing zones, but it is not needed if you plan to drain your pool water below the skimmer mouth entirely.

Winter Plugs – Swimline Rubber Expansion Plugs

After blowing the water out of the underground filtration plumbing lines, those lines must be sealed airtight to prevent water from seeping back in and freezing. Winter plugs insert into the return lines, cleaner lines, and skimmer ports to create a reliable barrier against moisture. Without these plugs, gravity and rising water levels will refill the pipes, exposing them to catastrophic freeze damage.

Swimline Rubber Expansion Plugs are engineered with premium, chemical-resistant rubber that expands uniformly against the inside of the pipe when the nylon wingnut is tightened. The non-corrosive nylon hardware ensures that the plugs will not rust or seize over the long winter, making them easy to remove in the spring. Their ribbed design ensures a slip-free grip inside smooth PVC pipes, even under high pressure.

• Sizes Available: Standard sizes ranging from #00 (1/2 inch) up to #14 (4 inches)
• Common Sizes: #8 (1.5 inches) for standard return jets
• Material: Heavy-duty rubber with nylon bolts and wingnuts

It is critical to measure the inner diameter of your return lines after removing the directional eyeball fittings, as most standard pools require size #8 plugs for 1.5-inch lines. Do not over-tighten the wingnuts, as excessive force can crack aged PVC fittings or strip the nylon threads. These plugs are indispensable for any in-ground pool owner who blows out their lines for winter, but they are not needed for simple above-ground setups that disconnect their hoses entirely.

Leaf Net – Blue Wave Bronze Leaf Net Cover

In areas surrounded by deciduous trees, autumn drops a thick carpet of wet, heavy leaves onto the pool cover. Trying to scoop or pump these rotting leaves off a waterlogged cover in the freezing cold is a miserable, back-breaking chore. A leaf net sits directly on top of your main winter cover, catching all falling debris so it can be peeled away in one easy motion once the trees are bare.

The Blue Wave Bronze Leaf Net Cover features an exceptionally strong, woven polyethylene mesh with a tight weave that stops even small twigs and pine needles from passing through. It is designed with a generous three-foot overlap to ensure it covers the entire surface area of the main pool cover without slipping. The heavy-duty, UV-protected material resists tearing when dragged across rough concrete coping under the weight of wet leaves.

• Material: Heavy-duty woven polyethylene
• Overlap: 3-foot overlap for secure fit
• Inclusions: Heavy-duty ratcheting winch and vinyl-coated steel cable
• Warranty: 4-year limited warranty

For the best results, remove the leaf net immediately after the final leaves have fallen in late autumn, before the first major snowfall glues the net to the main cover. If left on all winter, the accumulated weight of frozen snow can make the net impossible to remove without damage. This is a game-changing tool for pool owners with heavy foliage nearby, but it is a redundant expense for pools in clear, open yards.

Water Tubes – Swimline Double Chamber Water Tubes

For pools utilizing standard solid vinyl covers, keeping the edges secured against high winds and shifting snow is a constant battle. Water tubes lie along the perimeter of the pool deck, anchoring the cover edges flat to prevent wind from getting underneath and lifting the tarp. They provide a continuous, heavy weight that conforms to the deck shape far better than bricks or concrete blocks, which can rip the cover.

Swimline Double Chamber Water Tubes are superior to single-chamber alternatives because the two separate chambers prevent the tube from rolling off the pool deck and into the water. Constructed from heavy-duty heavy-gauge vinyl, they are built to withstand freezing temperatures without splitting along the seams. The leak-resistant valves are easy to open and seal shut with a firm press, keeping the water safely locked inside.

• Length Options: 8-foot and 10-foot lengths
• Configuration: Double chamber (dual tube) design
• Material: No-leak, cold-resistant vinyl

Never fill water tubes more than 60 to 70 percent full, as the water inside needs ample room to expand when it freezes into solid ice. Filling them completely will rupture the vinyl seams as soon as the first hard freeze hits. These tubes are the perfect anchoring solution for in-ground pools with solid covers and flat decks, but they are not compatible with safety-style covers that utilize deck brass anchors.

Cover Seal – Blue Wave Winter Cover Shield Wrap

Above-ground pools are highly susceptible to wind damage during autumn storms, as gusty winds can easily catch the lip of the winter cover and lift it like a sail. Once wind gets under the cover, it can shred the vinyl, tear the securing cables, or even pull the pool walls inward. A dedicated cover seal wraps tightly around the perimeter, locking the cover flush against the pool wall to block out wind and cold air.

The Blue Wave Winter Cover Shield Wrap is a specialized, high-stretch poly-blend film that clings to itself and the pool wall without leaving sticky adhesive residue behind. It is formulated with heavy-duty UV inhibitors to prevent the sun’s rays from degrading the wrap during long winter exposures. Wrapping this shield around the pool’s top rail creates an airtight seal that also prevents dirt and pests from crawling under the cover.

• Roll Length: 80-foot, 150-foot, and 500-foot rolls
• Width: 80 inches or 20 inches for varying coverage
• Material: High-performance, UV-resistant stretch film

Apply this wrap by walking around the pool perimeter at least three to four times, pulling the film taut to ensure a secure, multi-layered band of tension. This is a single-use product that must be cut off and discarded during spring opening, so keeping an extra roll on hand is wise. This wrap is an essential lifesaver for above-ground pool owners in high-wind regions, but it serves no purpose on in-ground pool configurations.

Pool Antifreeze – Splash Non-Toxic Pool Antifreeze

Even after blowing out underground plumbing lines, trace amounts of water can pool in low spots or elbows of the pipes due to condensation or minor valve leaks. If this standing water freezes, it can easily split underground PVC pipes, leading to incredibly costly excavation repairs. Pouring specialized pool antifreeze into these lines provides a critical safety margin by preventing any residual moisture from freezing solid.

Splash Non-Toxic Pool Antifreeze is formulated from high-purity propylene glycol, making it completely safe for pool equipment and non-toxic to swimmers and pets when the pool is opened in the spring. It is rated to protect plumbing lines down to -50 degrees Fahrenheit, providing absolute peace of mind during deep winter freezes. Unlike automotive antifreeze, it will not damage pool liners, gaskets, or rubber seals.

• Chemical Base: Propylene glycol (non-toxic)
• Freeze Protection: Down to -50°F (-46°C)
• Container Size: 1-gallon bottles

Never use automotive ethylene glycol antifreeze in a pool, as it is highly toxic to humans and animals and will ruin the filtration system. Always pour the antifreeze directly into the lines after they have been blown out and plugged, ensuring it settles in the lowest, most vulnerable plumbing runs. This product is highly recommended for in-ground pools in regions that experience sustained, sub-freezing winters, but it is not necessary for warm-climate pools that do not experience deep freezes.

How to Store Your Pool Accessories Safely for Winter

Once the pool is closed and sealed, the job is not quite done until the summer accessories are safely stored away for the winter. Leaving pumps, hoses, ladders, and toys exposed to freezing air and UV rays accelerates plastic degradation and ruins rubber gaskets. A systematic cleanup now ensures that your expensive equipment is ready to perform when the warm weather returns.

Every piece of equipment, from the chlorinator to the cleaning brushes, should be thoroughly rinsed with clean water to remove chemical residues, then left to dry completely in the sun. Storing damp gear invites mold and mildew, which can ruin vinyl and fabric items over a long winter in a dark shed. Keep small accessories, rubber O-rings, and drain plugs organized in a labeled, heavy-duty plastic bin with a locking lid to keep them from getting lost.

Rodents present a major threat to stored pool gear, as they love to chew on winter covers, vinyl liners, and soft plastic hoses for nesting material. Store your winter cover and leaf net in heavy-duty, rodent-proof bins rather than leaving them exposed on open garage shelves. Taking these extra preservation steps extends the lifespan of your gear, saving you money and frustration when spring rolls around.

Taking the time to close your pool with the right gear is the single best investment you can make in your backyard recreation space. By securing the plumbing, balancing the water, and shielding the structure from harsh winter elements, you protect your budget and your peace of mind. When the warm spring sun finally arrives, you will be rewarded with a clear, clean pool that is ready for another season of fun.