The solar thermal collection and radiant heating system for a spa comprising upper and lower absorber members having fluid passageways and in thermal communication, a skin member encasing said upper and lower absorber members and an insulative member located therebetween the upper and lower members and a solar collection device located on the skin member.

A reel for a swimming pool cover system includes an adjustable outer diameter that may receive a rope of the swimming pool cover system. The reel also includes an adjuster that may selectively change the outer diameter of the reel. A method for controlling an outer diameter of the reel includes controlling an adjuster of the reel such that the outer diameter of the reel changes.

A spa pool cover lifter and a spa pool including a spa pool cover lifter are disclosed. The spa pool cover lifter may include a first arm pivotally attached to a first section of an articulated spa pool cover and a second arm pivotally attached to a second section of the articulated spa pool cover. The first and second arms may be configured such that rotation of the first arm causes the first and second sections of the spa pool cover to fold together. An actuator and controller is disclosed. A mechanical linkage between the actuator and first arm is disclosed. The mechanical linkage may be an over-rotation linkage.

A diving pool includes a first tiered section extending to a first depth of the diving pool, a second tiered section extending to a second depth of the diving pool that is deeper than the first depth, and a cover. The cover can be releasably positioned within the diving pool at a depth of the diving pool to isolate a shallower portion of the diving pool above the cover at the depth from a deeper portion of the diving pool below the cover at the depth.

A movement assistance device for a spa cover having at least two spa cover portions each spa cover portion having opposing lateral peripheral edges, hinge and end peripheral edges and wherein the spa cover portions are movable one relative to the other from a first coplanar orientation to a second, stacked orientation, and a biasing pneumatic cylinder which cooperates with and extends between a first bracket secured to one lateral peripheral edge of one spa cover portion and a hinge bracket secured to the same lateral peripheral edge of the same spa cover portion adjacent the hinge peripheral edge and the hinge bracket is further secured to an aligned lateral peripheral edge of a second spa cover portion and adjacent to the hinge peripheral edge thereof, and wherein the pneumatic cylinder assists and controls the movement one spa cover portion relative to the other spa cover portion.

A diving pool includes a first tiered section extending to a first depth of the diving pool, a second tiered section extending to a second depth of the diving pool that is deeper than the first depth. The diving pool may be configured to facilitate pressure-based therapeutic treatments at the various depths. The diving pool may include a cover. The cover can be releasably positioned within the diving pool at a depth of the diving pool to isolate a shallower portion of the diving pool above the cover at the depth from a deeper portion of the diving pool below the cover at the depth.

A pool double safety cover with at least one protection protocol includes a first cover that is substantially impermeable to water, and a second cover that is substantially permeable to water. A track system having independent parallel tracks is provided for guiding the first cover and the second cover to open and close over a pool. At least one interlock switch is configured to generate a signal indicating whether the first cover and the second cover is in a fully open or fully closed state. A drive system is configured to open and close the first cover and the second cover over the pool according to a protection protection protocol based on feedback from the interlock switch and at least one sensor. In another example, the protection protocol is a freeze protection protocol. In another example, the protection protocol is a precipitation protection protocol.

This disclosure relates to a louvered patio cover. The louvered patio cover may comprise a frame with support beams, louvered panels, support beam couplers, an actuator, a gutter, and/or other components. The support beams may have angled ends. The louvered panels may be rotatably coupled to the support beams. A support beam coupler may comprise first and second receivers. The first receiver may be configured to receive an angled end of a first support beam, and the second receiver may be configured to receive an angled end of a second support beam. The angled ends of the first and second support beams may face, meet, and/or abut each other when received by the first and second receivers. The actuator may be configured to rotate the louvered panels. A gutter may comprise a lighting channel configured to hold a light source for lighting an area under the louvered patio cover.

A movement assistance device for a spa cover having at least two spa cover portions each spa cover portion having opposing lateral peripheral edges, hinge and end peripheral edges and wherein the spa cover portions are movable one relative to the other from a first coplanar orientation to a second, stacked orientation, and a biasing pneumatic cylinder which cooperates with and extends between a first bracket secured to one lateral peripheral edge of one spa cover portion and a hinge bracket secured to the same lateral peripheral edge of the same spa cover portion adjacent the hinge peripheral edge and the hinge bracket is further secured to an aligned lateral peripheral edge of a second spa cover portion and adjacent to the hinge peripheral edge thereof, and wherein the pneumatic cylinder assists and controls the movement one spa cover portion relative to the other spa cover portion.

This disclosure relates to a louvered patio cover. The louvered patio cover may comprise a frame with support beams, louvered panels, support beam couplers, an actuator, a gutter, and/or other components. The support beams may have angled ends. The louvered panels may be rotatably coupled to the support beams. A support beam coupler may comprise first and second receivers. The first receiver may be configured to receive an angled end of a first support beam, and the second receiver may be configured to receive an angled end of a second support beam. The angled ends of the first and second support beams may face, meet, and/or abut each other when received by the first and second receivers. The actuator may be configured to rotate the louvered panels. A gutter may comprise a lighting channel configured to hold a light source for lighting an area under the louvered patio cover.