1. Introduction
Thank you for choosing the POOLHACKER 21 ft Round Above Ground Winter Pool Cover. This manual provides essential information for the proper installation, operation, and maintenance of your new pool cover. Designed with a 4-foot overlap and extra thick 420D material, this cover is engineered to protect your above-ground pool from harsh winter conditions, debris, and UV radiation, ensuring crystal clear water when spring arrives.
Safety Warning: Always follow safety guidelines when installing, using, and storing this pool cover to prevent drowning hazards. Ensure the cover is securely fastened at all times.
2. Product Features
- Extreme Weather Durability: Engineered to withstand temperatures as low as -10° F (-25° C), providing robust protection against snow, ice, and harsh winds.
- Water Clarity: Effectively shields your pool from debris, leaves, and rainwater, helping to maintain crystal clear water.
- Secure Fastening: Features a dependable winch cable system for a tight and secure fit around your pool.
- High-Quality Material: Constructed from extra thick 420D polyethylene (PE) with a 14 × 14 scrim count and 185 grams density. The LDPE coating offers superior UV protection and prevents algae growth.
- Windproof Design: Super windproof design and robust material ensure the cover remains in place during strong winds.
3. Setup and Installation
Proper installation is crucial for the effectiveness and longevity of your pool cover. Follow these steps carefully:
- Prepare Your Pool: Ensure your pool is clean and properly winterized according to your pool manufacturer's guidelines. Adjust water levels as recommended for winter.
- Install the Pool Pillow (Optional, Sold Separately): If using a pool pillow, place it in the center of the pool and secure it to the corners. This helps to absorb ice expansion and prevent water accumulation on the cover.
- Position the Cover: Carefully unfold the POOLHACKER winter pool cover and center it over your above-ground pool. Ensure the 4-foot overlap extends evenly around the entire perimeter of the pool.
- Secure the Cover: Thread the included winch cable through the grommets located along the edge of the cover. Ensure the cable is taut and evenly distributed.
- Tighten the Cable: Use the adjustable pulley system (winch) to tighten the cable firmly around the pool. This creates a secure seal, preventing wind from lifting the cover and debris from entering the pool.



4. Operating the Pool Cover
Once installed, the POOLHACKER winter pool cover requires minimal operation. Its primary function is to provide continuous protection throughout the off-season.
- Seasonal Use: Install the cover before the first freeze and remove it when you are ready to open your pool for the swimming season.
- Water Accumulation: The cover is designed to prevent water from entering the pool. Any rainwater or melted snow that collects on top of the cover should be removed periodically to prevent excessive weight and potential damage. A cover pump (not included) can be used for this purpose.
- Wind Protection: The robust pulley and cable system ensures the cover remains secure even in high winds. Regularly check the tension of the cable and adjust if necessary to maintain a tight fit.
5. Maintenance
Regular maintenance will extend the life of your POOLHACKER winter pool cover and ensure optimal performance.
- Cleaning: Occasional cleaning to remove debris and dirt from the top surface of the cover is recommended. Use a soft brush or broom and rinse with water. Avoid harsh chemicals that could damage the material.
- Water Removal: Do not allow large amounts of water or snow to accumulate on the cover. Use a cover pump or siphon to remove standing water.
- Inspection: Periodically inspect the cover for any signs of wear, tears, or damage to the grommets and cable. Address any issues promptly to prevent further damage.
- Storage: Before storing the cover for the summer, clean it thoroughly and ensure it is completely dry to prevent mold or mildew growth. Fold it neatly and store it in a cool, dry place away from direct sunlight and pests.
6. Troubleshooting
If you encounter any issues with your pool cover, refer to the following common problems and solutions:
- Cover is Loose: If the cover appears loose or sags, re-tighten the winch cable. Ensure the cable is properly threaded through all grommets and the pulley system is functioning correctly.
- Water Accumulation on Cover: This is normal. Use a pool cover pump to remove excess water. Ensure your pool pillow (if used) is properly inflated and centered to create a dome effect.
- Debris in Pool After Installation: Check for any gaps between the cover and the pool wall. Ensure the cable is tight and the overlap is sufficient. Inspect the cover for any tears or holes that may allow debris to enter.
- Cover Damage: Small punctures or tears can often be repaired with a vinyl patch kit. For significant damage, consider replacing the cover to ensure full protection.
7. Specifications
| Feature | Detail |
|---|---|
| Brand | POOLHACKER |
| Model Number | NU_YC058-YX-21FT_FBA |
| Size | 21FT Round |
| Overlap | 4 Foot |
| Color | Red |
| Material | Polyethylene (PE) |
| Material Density | 420D, 185 grams |
| Scrim Count | 14 × 14 |
| Closure Type | Pulley and Cable System |
| Installation Type | Floating |
| Shape | Round |
| Item Weight | 9.68 Kilograms |
| UPC / GTIN | 768837700318 |
8. Warranty and Support
For warranty information or customer support, please refer to the product packaging or contact POOLHACKER directly through their official website or the retailer where the product was purchased. Please retain your proof of purchase for any warranty claims.