Pool Cover Installation Tools to Keep Your Pool Secure in Winter

Protecting the Barrier: The Winterization Hardware System

While a winter cover provides the primary shield for your swimming pool, it is the accessories that ensure that shield survives the season. This collection encompasses the mechanical hardware required to combat the three main enemies of a closed pool: Ice Expansion, Wind Uplift, and Hydrostatic Pressure.

For Above Ground pools, Ice Compensators (air pillows) are critical; they are not designed to keep the cover dry, but to act as a sacrificial void. When pool water freezes and expands, it crushes the pillow rather than rupturing your pool walls. Cover Clips and Winches work in tandem to create a hermetic wind seal, preventing the "parachuting" effect that shreds covers.

For In-Ground pools, Water Tubes provide a non-abrasive ballasting system. Unlike bricks or stones, which cause abrasion tears, vinyl water tubes maintain a soft seal against the deck, preventing debris entry while securing the perimeter. Proper selection of these components turns a simple tarp into a structural defense system, preserving both your water chemistry and your physical pool shell until spring.

Q: What is the true purpose of an air pillow (Ice Compensator)?
A: Contrary to popular belief, the air pillow is not meant to keep the top of your cover dry. Its technical purpose is ice compensation. When water freezes, it expands. The pillow creates a void in the water; as the ice expands, it crushes the pillow inward instead of pushing outward against your pool walls, preventing structural damage.

Q: How do I calculate how many water tubes I need?
A: You need full perimeter coverage to prevent wind from getting under the cover. Measure the length and width of your pool, add them together, and multiply by 2. (Example: A 20x40 pool has a 120ft perimeter). Select enough 8ft or 10ft tubes to cover this entire distance, placing them end-to-end.

Q: Can I use bricks or concrete blocks instead of water tubes?
A: Never. Concrete and brick are abrasive; wind vibration will cause them to sand-paper through your vinyl cover in days. Furthermore, if a brick is dragged into the pool, it can tear the liner or crack the fiberglass shell. Water tubes are designed to be soft, non-abrasive, and heavy enough to secure the cover safely.

Q: Do I need cover clips if I already use a cable and winch?
A: Yes. The cable and winch secure the circumference of the cover, but high winds can still whip underneath the fabric, causing it to billow. Cover clips (Wall Bags for in-ground) act as secondary clamps, sealing the gaps between the cable and the top rail to prevent wind uplift.

Q: How much air should I put in my air pillow?
A: Only inflate air pillows to about 60-70% capacity. If you fill them to 100%, they will pop immediately when the ice squeezes them. Leaving them soft allows them to absorb the pressure of the expanding ice without bursting.