Abstract: 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.

Abstract: Detailed are valve assemblies principally for use as part of in-floor cleaning systems for swimming pools. The assemblies may use mechanisms for converting continuous rotation into discontinuous rotation, changing the timing of water distribution to different outlet of the assemblies. One such mechanism includes both an impeller, whose blades are rotated continuously by impingement of pressurized water, and a Geneva drive, whose driven wheel is rotated discontinuously by one or more associated drive wheels.

Abstract: Detailed are valve assemblies principally for use as part of in-floor cleaning systems for swimming pools. The assemblies may use mechanisms for converting continuous rotation into discontinuous rotation, changing the timing of water distribution to different outlet of the assemblies. One such mechanism includes both an impeller, whose blades are rotated continuously by impingement of pressurized water, and a Geneva drive, whose driven wheel is rotated discontinuously by one or more associated drive wheels.

Abstract: A splicing apparatus for interconnecting tubes may include: a first longitudinally elongate structure including a first radially outer surface and a first radially inner surface; a second longitudinally elongate structure including a second radially outer surface and a second radially inner surface, the first and second structures being configured to be arranged with the first and second inner surfaces facing each together and the first and second outer surfaces defining an equivalent diameter; and at least one movable element configured to engage the first and second inner surfaces, whereby movement of the at least one movable element changes a relative position of the first and second structures thereby changing the equivalent diameter defined by the first and second outer surfaces. A kit for a pool cover assembly may include first and second tubes and a splicing apparatus configured to interconnect the tubes.

Abstract: A splicing apparatus for interconnecting tubes may include: a first longitudinally elongate structure including a first radially outer surface and a first radially inner surface; a second longitudinally elongate structure including a second radially outer surface and a second radially inner surface, the first and second structures being configured to be arranged with the first and second inner surfaces facing each together and the first and second outer surfaces defining an equivalent diameter; and at least one movable element configured to engage the first and second inner surfaces, whereby movement of the at least one movable element changes a relative position of the first and second structures thereby changing the equivalent diameter defined by the first and second outer surfaces. A kit for a pool cover assembly may include first and second tubes and a splicing apparatus configured to interconnect the tubes.

Abstract: A track system for use with a cover positionable over a space, which includes a first and second track positioned proximate the space. The first and second tracks each include a slot extending the length of the track, and is configured for slidably receiving an outside edge of the cover. The track system includes first and second trolleys each having a slide for positioning in and configured for movement in their corresponding slot. Each trolley having support means for contact with a support surface to support the corresponding trolley. The support means is configured to facilitate movement of the trolley relative to a corresponding track. The track system also includes a leading edge support for connection to and between both trolleys, and is configured to have a leading edge of the cover attached thereto.