Abstract: The present invention provides compositions and methods of reducing cyanuric acid levels in recreational water systems.

Abstract: The present invention provides compositions and methods of reducing cyanuric acid levels in recreational water systems.

Abstract: A soft, flexible, floating temperature regulating and evaporation reducing cover for a pool generally comprises an independently inflatable outer ring and central portion. Holes through the central portion permit egress of air from under the central portion when the cover is placed on water. Valves for chamber and cavity are located near one edge such that the cover may be deflated by rolling from an edge opposite the valves. Top and bottom films are adapted to absorb or reflect solar radiation to heat or cool the pool as desired. Magnets on the ring condition water and attach to similar floating covers to form rafts. For holding the cover in a pool during winds, the ring can be inflated with water or in an alternate embodiment, water anchors fill with water.

Abstract: A floating spa cover generally comprises an inflatable insulating and soar heating central portion surrounded by one or more independently inflatable adjustable rings. The inflatable central portion comprises a center section and a peripheral ring. The center section covers most of the spa water surface and includes an upper film of substantially transparent plastic and a lower film of translucent plastic separated by a gas-filled space. The first adjustable ring, connected to the central portion so as to be selectively removable, encompasses the central portion and is independently inflatable to selectively adjust the area of the cover over a first range of areas. The second adjustable ring, connected to the first adjustable ring so as to be selectively removable, encompasses the first adjustable ring and is independently inflatable to selectively adjust the area of the cover over a second range of areas.

Abstract: A soft, flexible, solar pool heater for floating on water generally comprises independently inflatable outer ring and central portion. When chamber and cavity are inflated, the cavity is with the top and bottom planes of the ring. The ring can be inflated with water for holding the heater in a pool in winds. Holes through the central portion permit egress of air from under the central portion when the heater is placed on water. Valves for chamber and cavity are located near one edge such that the heater may be deflated by rolling from an edge opposite the valves. Magnets on the ring condition water and attach to similar floating heaters to form rafts.