Example forms of the invention relate to a woven fabric material comprising an array of machine direction yarns and cross-machine direction yarns, with larger denier yarns arranged in an alternating pattern with smaller denier yarns in both the machine direction and the cross-machine direction, wherein the material allows water to pass freely therethrough. Further example forms of the invention relate to a swimming pool cover at least partially formed of the disclosed fabric.

Example forms of the invention relate to a woven fabric material comprising an array of machine direction yarns and cross-machine direction yarns, with larger denier yarns arranged in an alternating pattern with smaller denier yarns in both the machine direction and the cross-machine direction, wherein the material allows water to pass freely therethrough. Further example forms of the invention relate to a swimming pool cover at least partially formed of the disclosed fabric.

A spa cover constructed of layers of pliable insulation encapsulated within a weatherproof vinyl reinforced fabric or a rubber membrane which is attached to rigid square support tubes that run parallel to the short end of the spa. The encapsulated insulation is fastened to the bottom of the square support tubes with corrosion-free nylon anchors which allows the soft insulation assembly to span over the water and rest directly on the spa bartop surface sealing the heat in and keeping debris out. An arched fiberglass rod structure supports a weatherproof rainfly which is permanently affixed to the flat cover assembly to shed rain and debris. The entire assembly is held in place at each end with adjustable straps which stretch the cover from end to end keeping the rainfly taut. Removing the cover to access the spa involves undoing the straps on one end and rolling the cover assembly towards the other end until the desired amount of spa exposure is reached. Covering the spa after use is just the opposite procedure.

A thermal-insulation cover for an above-ground pool is provided. The above-ground pool has a pool bottom and an outer wall coupled to the pool bottom. A thermal-insulation cover includes: a thermal-insulation sleeve configured to fit around the outer wall of the pool; and an extended portion including: an upper extension connected to an upper circumference of the thermal-insulation sleeve and extending radially inward from the upper circumference of the thermal-insulation sleeve, and a lower extension connected to a lower circumference of the thermal-insulation sleeve and extending radially inward from the lower circumference of the thermal-insulation sleeve.

A pool cover deployment apparatus is provided. A pool cover deployment apparatus for assisting in manual overlay of a pool cover onto a surface of a pool, comprising an elongated member comprising one or more first attachment members affixed to a front side of the elongated member and one or more second attachment members affixed to a back side of the elongated member. The elongated member is coupled to a leading edge of the pool cover via one or more fasteners and the one or more first attachment members. A pulling mechanism and a means of attaching the cover to the pulling mechanism wherein the pulling mechanism is manually employed by a user such that the pool cover is extended over the pool.

A drawbar assembly having a first continuous drawbar having an open end, a closed end, and an elongate body extending therebetween along an axis, and a spring anchor formed at the open end; a second continuous drawbar having an open end, a closed end, and an elongate body extending therebetween along the axis, and a spring anchor formed at the open end; the first and second drawbars oriented with respect to each other such that at least a portion of each elongate body overlaps with the other along the axis and the open end of one drawbar is proximate the closed end of the other; and a compression coil spring positioned over the overlapping elongate body portions and secured at each end by a respective spring anchor; wherein a region of at least one closed end is coined.

A drawbar assembly having a first continuous drawbar having an open end, a closed end, and an elongate body extending therebetween along an axis, and a spring anchor formed at the open end; a second continuous drawbar having an open end, a closed end, and an elongate body extending therebetween along the axis, and a spring anchor formed at the open end; the first and second drawbars oriented with respect to each other such that at least a portion of each elongate body overlaps with the other along the axis and the open end of one drawbar is proximate the closed end of the other; and a compression coil spring positioned over the overlapping elongate body portions and secured at each end by a respective spring anchor; wherein a region of at least one closed end is coined.

A cover assembly for an indoor or outdoor item. The cover assembly is moveable between an expanded configuration and a collapsed configuration and includes panels of a textile material stitched together with inside seams and outside seams. The cover assembly receives the selected item within an interior area defined by the panels and the selected item holds the cover assembly in the expanded configuration. The outside seams are biased to close toward an interior area of the cover assembly and the inside seams are biased to close away from the interior area such that, when the cover assembly is removed from the selected item, the cover assembly is biased to close along the inside and outside seams to cause the cover assembly to move to the collapsed configuration to increase the ease of folding and storing the cover assembly.

A dome shaped roof structure for outdoor pools, both above ground pools and with minimal modification inground pools, that does not interfere with the use of the pool consisting of a plurality of flexibility poles supported by the pool, with a flexible tension ring holding the pole ends together over the center of the pool and a net fabric material that covers the pole and tension ring frame which is secured around the top of the pool. The roof structure works for all shapes and many sizes of pools providing protection from bugs and debris while still maintaining the outdoor experience. The high flexibility of the frame and tension ring allows winds and rain to flow thru without damage to the roof during inclement weather. The low number of elements that make up the roof structure make it inexpensive as well as easy to assemble, dismantle and store.

Systems and methods for providing network connectivity and remote monitoring, optimization, and control of pool/spa equipment are provided. “Internet-of-Things” (IoT) functionality is provided for pool and spa equipment in a flexible and cost-effective manner. Network connectivity and remote monitoring/control of pool and spa equipment is provided by various components such as a network communication and local control subsystem installed in pool/spa equipment, and other components. Also disclosed are various control processes (“pool logic”) which can be embodied as software code installed in any of the various embodiments of the present disclosure.