Failure to protect your pool cover when it is not on the water results in the cover shrinking, curling or burning. When a pool cover is on the pool water the radiant heat transfers into the water adding heat to the pool. When a cover is not on the pool the same radiant heat has no where to go and effects the Polyethylene fabric.
Overheating: One major contributor to pool cover shrinkage is overheating. This phenomenon occurs when the pool cover is off the pool, folded or rolled up, and exposed to partial or direct sunlight. Over time, heat accumulates within the layers of the folded or rolled cover, causing the plastic material to become more pliable. This increased malleability leads to the expansion of air within the bubbles, causing them to stretch into a convex profile rather than maintaining a flat shape. This stretching results in abnormal shrinkage, and it's important to note that such shrinkage is not covered under the warranty.
Gassing Up: "Gassing up" is another factor contributing to pool cover shrinkage. It involves the expansion of air within the bubbles, leading to increased pressure and causing tension within the cover material. This tension results in a slight reduction in cover size and appears to be connected to water temperature and an imbalance in water treatment. Moisture within the bubbles due to condensation may also play a role. To prevent permanent damage due to gassing up, prompt testing and adjustment of pool chemistry to recommended levels are essential.
Rolling and Folding: Rolling and folding the pool cover when it is not in use can lead to the formation of creases in the material, which affect the cover's fit. To counteract shrinkage and extend the lifespan of the pool cover, it's advisable to add 2% of the pool dimensions to the cover size during production. Additionally, using a high-quality reflective storage cover when the main cover is not in use can help protect it from environmental factors that contribute to shrinkage.
Shade Protection: To prevent overheating-induced curling or shrinkage , it's crucial to protect the pool cover from direct sunlight when not in use. Placing the cover under shade cloth or a patio is insufficient to shield it from the sun's heat. Complete shade protection is necessary to avoid damage due to overheating. Using a reflective storage cover can also help safeguard the cover's integrity and extend its lifespan.
Our suggestion is to always use your reflective over cover when the pool is not in use.