A ball cover is a simple and effective way to cover a pond. A ball cover is made up a large number of small black, UV-stable plastic balls. These balls are typically 4" (100mm) in diameter and completely sealed. This gives us a light weight ball that floats on top of a water containment typically covering 91% of the surface. As water levels rise and fall the balls organize themselves into a cover that completely covers the surface. This masks the surface of the water from waterfowl preventing birds from landing in or near the water. This is one of the main uses for ball covers making them very popular for ponds near airports and for ponds that contain hazardous liquids.
Ball covers also can help reduce evaporation, odors, and algae buildup in ponds. Adding a layer of balls provides immediate coverage that will operate for many years without maintenance. A ball cover can also help retain heat and is sometimes used in multiple layers to provide greater heat retention.
Ball covers are easy to install and do not require skilled technicians for installation. The balls are poured into the pond and will float on the water to take the shape of the pond (or tank). Ball covers will adapt to any shape of pond or tank and will flow around structures, aerators, or any other shape in the pond. The ball cover will also move out of the way when items are moved inside the pond. This makes it especially easy to bring floating aerators to the shore for maintenance.
Ball covers are a compliment to Layfield's extensive floating cover product line. Ball covers are suitable in many situations and are easy to install and maintain. They can also be combined with other Layfield cover types; hatches, openings, or other areas can be covered with balls to provide flexibility in operations or maintenance.