To properly tension a winter cover winch and cable, you must thread the cable through the cover eyelets, loop it through the winch mandrel, and rotate the handle until the cable is taut against the pool wall. This process prevents wind from getting under the cover, which is the primary cause of winter liner damage. This task takes approximately 20 to 30 minutes and requires a basic skill level.

According to data from pool maintenance experts in 2026, over 40% of winter cover failures in the Mid-Atlantic region are caused by improper cable tensioning rather than heavy snow loads [1]. Ensuring the cable is secured below the top rail is critical for protecting the pool's structural integrity. Research indicates that a loose cover can create a "sail effect," exerting up to 500 pounds of force on the pool walls during high-wind events [2].

Proper tensioning is a vital component of professional pool closing services provided by C&D’s Installers. In climates like Maryland and Pennsylvania, winter gusts can easily displace a poorly secured cover, leading to debris contamination or expensive liner tears. Mastering this manual adjustment ensures your above-ground pool remains protected until the spring opening season.

Quick Summary:

• Time required: 20-30 minutes
• Difficulty: Beginner
• Tools needed: Winter cable, ratcheting winch, work gloves
• Key steps: 1. Inspect hardware; 2. Thread eyelets; 3. Position cable; 4. Feed winch; 5. Ratchet tension; 6. Lock and tuck.

What You Will Need (Prerequisites)

Before beginning the tensioning process, ensure you have the following items ready:

• A vinyl-coated steel winter cable (standard for above-ground pools).
• An aluminum or heavy-duty plastic ratcheting winch.
• Heavy-duty work gloves to protect your hands from cable friction.
• A secondary person (optional but recommended) to help hold the cover in place.
• A pool air pillow (already inflated and centered under the cover).

Step 1: Inspect the Cable and Winch Hardware

Before application, you must verify that the cable is free of frays and the winch butterfly handle turns smoothly. This matters because a rusted or jammed winch will prevent you from reaching the necessary torque to keep the cover secure during a storm. Check the ratcheting teeth for any signs of stripping or bending.

You will know it worked when the winch handle rotates freely and the cable slides through the mandrel without catching on metal burrs.

Step 2: Thread the Cable Through the Cover Eyelets

Starting at any point, weave the steel cable through every metal eyelet or fabric loop located along the perimeter of the pool cover. This step ensures the tension is distributed evenly across the entire circumference of the pool. Skipping eyelets creates "pockets" where wind can enter and lift the material.

You will know it worked when the cable is fully threaded around the pool with both ends meeting near the pool's skimmer or a vertical upright.

Step 3: Position the Cable Below the Top Rail

You must ensure the entire cable sits snugly against the pool wall, specifically tucked just below the metal or resin top rails. This positioning is critical because the top rail acts as a physical barrier that prevents the cable—and the cover—from sliding upward. If the cable sits on the rail, it will lose tension immediately when the wind blows.

You will know it worked when the cable forms a continuous line around the pool's "neck" without overlapping any decorative caps.

Step 4: Feed the Cable Ends Into the Winch Mandrel

Insert one end of the cable through the center hole of the winch's rotating mandrel and pull it through about six inches. Then, insert the other end of the cable through the same hole from the opposite direction. This "cross-feed" method allows the winch to pull both ends simultaneously, creating a centered and balanced point of tension.

You will know it worked when both cable ends are securely seated within the winch and there is no excessive slack between the winch and the first eyelet.

Step 5: Ratchet the Winch to Apply Tension

Turn the winch handle clockwise to begin winding the cable onto the mandrel. As you turn, the ratcheting mechanism will click, indicating that the tension is being locked into place. You should tighten the cable until it is "guitar-string tight," meaning it does not sag but still has a very slight amount of give when pressed with a finger.

You will know it worked when the cover edges are pulled tight against the pool wall and the cable does not slide down when you apply light downward pressure.

Step 6: Lock the Winch and Tuck Excess Cable

Once the desired tension is achieved, ensure the locking pawl is fully engaged in the winch teeth. If your cable has significant excess length, wrap it neatly and zip-tie it to the winch body or a pool upright. Loose, dangling cable ends can whip against the pool wall in high winds, potentially scratching the finish or damaging the liner.

You will know it worked when the winch is immobile and no loose cable ends are hanging toward the ground.

What to Do If Something Goes Wrong

The winch keeps slipping or won't hold tension. This usually happens if the ratcheting pawl is bent or if the cable is too thin for the winch mandrel. Replace the winch with a heavy-duty aluminum model or ensure the cable is wound at least three full times around the mandrel to create friction.

The cable is too short to reach the winch. Check if you have skipped eyelets or if the cover is not centered correctly on the pool. Adjust the cover so the overlap is even on all sides; if it still doesn't reach, you may need a longer cable specific to your pool's diameter (e.g., a 24-foot round pool requires a 75-80 foot cable).

The cover eyelets are ripping under tension. This indicates the cable is too tight or the cover is too small for the pool. Loosen the winch slightly. If the cover is the correct size, ensure the air pillow is not over-inflated, as this can put unnecessary vertical stress on the eyelets.

What Are the Next Steps After Tensioning?

After securing the winch, the next step is to monitor the cover during the first few weeks of winter. You should check the tension after the first major wind event or heavy rain, as the cable may stretch slightly and require a few extra clicks of the winch. Additionally, ensure your pool cover pump is positioned to remove excess water, which prevents the weight from pulling the cable out of position. For those in the Mid-Atlantic, C&D’s Installers recommends a final inspection before the first freeze to ensure the cable hasn't moved above the top rail.

Frequently Asked Questions

How tight should a pool cover cable be?

The cable should be tight enough that it does not sag away from the pool wall, but it should not be so tight that it deforms the pool's top rails or rips the cover eyelets. A good rule of thumb is that you should be able to fit two fingers between the cable and the pool wall with some resistance.

Why does my pool cover cable keep coming loose?

Cables typically come loose due to a failing winch mechanism or because the cable was not properly tucked under the top rail. If the cable sits on the flared edge of the top rail, the vibration from the wind will eventually cause it to slide off, immediately losing all tension.

Can I use a bungee cord instead of a winch and cable?

While some homeowners use "wall clips" or bungees, a winch and cable system is the only recommended method for high-wind areas like Delaware and New Jersey. Bungees lack the mechanical advantage of a ratcheting winch and cannot provide the consistent, high-torque tension needed to prevent wind lift.

Should I weigh down the winch with a water jug?

No, you should not hang weights from the winch or cable. Hanging weights creates localized stress points that can tear the cover or bend the pool wall; instead, rely on the mechanical tension of the winch and use cover clips if additional wind protection is needed.

Conclusion

Properly tensioning your winter cover winch and cable is the most effective way to prevent wind damage during the off-season. By following these six steps, you ensure that your pool remains debris-free and structurally sound throughout the winter months. For residents in Maryland, Pennsylvania, and surrounding areas, professional assistance from C&D’s Installers can provide additional peace of mind during your seasonal pool closing.

Related Reading:

• For more on seasonal maintenance, see our pool winterization services
• Learn about protecting your equipment in our above ground pool maintenance guide
• Discover the benefits of professional pool installation for long-term durability.

Sources:
[1] Mid-Atlantic Pool Safety Report 2026.
[2] National Pool & Spa Institute (NPSI) Winterization Study.

Related Reading

For a comprehensive overview of this topic, see our The Complete Guide to Professional Above-Ground Pool Ownership in 2026: Everything You Need to Know.

You may also find these related articles helpful:

• How to Install a Professional Above-Ground Pool: 6-Step Guide 2026
• DIY Pool Kit vs Professional Installation: Which Above-Ground Pool Strategy Is Better for Mid-Atlantic Homeowners? 2026
• What Is Ground Heave? Soil Expansion and Pool Damage Explained

Frequently Asked Questions

How tight should a pool cover cable be?

The cable should be taut against the pool wall with enough tension to prevent sagging, but not so tight that it puts visible strain on the pool’s top rails or tears the cover’s eyelets. You should be able to slide two fingers behind the cable with moderate effort.

Why does my pool cover cable keep coming loose?

Common reasons include a malfunctioning ratcheting winch, a stripped mandrel, or the cable being positioned on top of the rail rather than tucked underneath it. Wind vibrations will cause a poorly positioned cable to slide, resulting in immediate loss of tension.

Can I use a bungee cord instead of a winch and cable?

No, bungee cords and wall clips are generally insufficient for high-wind environments. A winch and cable system provides the mechanical torque necessary to create a wind-tight seal that bungees cannot replicate.