Maximum air pressure: 0.05 bar
The Solar Sun Ring is a passive solar swimming pool heating device made from two sheets of heavyweight U.V. resistant vinyl. The upper clear layer holds insulating air and focuses sunlight on the blue colored lower layer. The blue layer absorbs about 50% of the sunlight and converts it to heat. The balance of the sunlight is allowed to pass through for deep water heating. We recommend 70% to 80% coverage for most efficient thermal heating and retention.
The additional water anchors are tabs at the bottom of the ring that fill with water, holding the ring in place on the water. Its use is recommended above all in windy regions or for pools without a border.