Provided herein is a resin composition containing milled fibreglass and graphene. Also provided herein is a composite material containing cured resin composition, fibreglass reinforced resin containing the composite material and further fibreglass, a laminate including a layer of the fibreglass reinforced resin, and methods of making the resin composition, composite material and fibreglass reinforced resin. The composition, composite material and fibreglass reinforced resin and laminate find use in, for example, the construction of swimming pools and spa pools.

A pool shell including a wall, a floor and a region of curvature running along a bottom of the wall and connecting the wall to the floor. A fastener-receiving formation, on an exterior of the region of curvature is for rigidly connecting the bottom to a support. Also discussed is a swimming pool including a pool shell, having a wall and two or more upright supports. The wall has a top, a bottom, a first elongate stiffening portion and an exterior. The upright supports are spaced along the exterior. The first elongate stiffening portion runs along the wall and is positioned more than 250 mm from each of the top and the bottom. Each of the upright supports are rigidly connected to the first elongate stiffening portion and at least one of the top and the bottom, and predominantly formed of elongate rigid members.

A modular swimming pool with one or more swimming pool modules that each include a floor element, and a wall element connected to the floor element. The swimming pool modules by assembly define an internal pool space. The floor element and the wall element of a swimming pool module have reinforcement ribs and the reinforcement ribs of the wall element extend towards the floor element. The reinforcement ribs are spaced apart from each other and on the external surface form open chambers configured, when resting on a mounting surface, to be completely filled with a binder. The internal pool space in the area of the floor element has a wedge-like recess, forming a continuous duct area of the internal pool space, and the reinforcement ribs of the floor element are connected to an external surface of the recess, which faces away from the duct area, thereby restricting the open chambers.

The present invention provides a above ground pool, comprising a flexible pool body. The flexible pool body comprises: a polygonal bottom sheet that comprises a plurality of edge portions; and a plurality of side sheets, each side sheet comprising a pool sidewall portion and a pool bottom portion, and each of the pool sidewall portions and each of the pool bottom portions being in the shape of an isosceles trapezoid. Each of pool sidewall portion comprises a first upper-base portion, a first lower-base portion and a first middle portion defined between the first upper-base portion and the first lower-base portion, and each of the pool bottom portion comprises a second upper-base portion, a second lower-base portion and a second middle portion defined between the second upper-base portion and the second lower-base portion. The first lower-base portion and the second lower-base portion coincide to define a junction of the pool sidewall portion and pool bottom portion. The first middle portions of the side sheets are successively connected to form a side wall of the above ground pool and the second middle portions are successively connected to form an outer ring of the bottom of the above ground pool. The second upper-base portions of the pool bottom portions are respectively connected to the edge portions of the bottom sheet. In the above ground pool of the present invention, joints are moved to a side wall of the swimming pool or the bottom of the swimming pool as much as possible, thereby reducing the length of joints passing through a heavily stressed area to the greatest extent, simplifying production processes, reducing costs, and reducing the probability of water leakage from the above ground pool.

A pool, preferably a plunge pool, that can be prefabricated and on site installed in a short space of time is provided. The pool is integrally formed, resulting in a unitary pool shell having a floor, one or more sidewalls connected to the floor, a surface, such as a step or bench, extending from at least one of the sidewalls; and a peripheral wall extending from the surface to the floor.

A pool, preferably a plunge pool, that can be prefabricated and on site installed in a short space of time is provided. The pool is integrally formed, resulting in a unitary pool shell having a floor, one or more sidewalls connected to the floor, a surface, such as a step or bench, extending from at least one of the sidewalls; and a peripheral wall extending from the surface to the floor.

A method of manufacturing a spa including molding a plurality of side walls, cutting utility openings in said side walls, thereby producing cutouts which are then secured to the side wall and cover at least a part of the utility opening. The cutouts may cover the same utility opening from which it stems or a different utility opening from the same side wall or different side wall. The side walls may be made integral to the basin, such as in rotomolded spas, or made separate from the basin. Certain cutouts are rotated so as to have a major dimension of the cutout cover a minor dimension of the utility opening. Certain cutouts are trimmed from their initial size so as to cover a utility opening smaller than the utility opening from which it stems.

A pool, preferably a plunge pool, that can be prefabricated and on site installed in a short space of time is provided. The pool is integrally formed, resulting in a unitary pool shell having a floor, one or more sidewalls connected to the floor, a surface, such as a step or bench, extending from at least one of the sidewalls; and a peripheral wall extending from the surface to the floor.

A pool shell including a wall, a floor and a region of curvature running along a bottom of the wall and connecting the wall to the floor. A fastener-receiving formation, on an exterior of the region of curvature is for rigidly connecting the bottom to a support. Also discussed is a swimming pool including a pool shell, having a wall and two or more upright supports. The wall has a top, a bottom, a first elongate stiffening portion and an exterior. The upright supports are spaced along the exterior. The first elongate stiffening portion runs along the wall and is positioned more than 250 mm from each of the top and the bottom. Each of the upright supports are rigidly connected to the first elongate stiffening portion and at least one of the top and the bottom, and predominantly formed of elongate rigid members.

Provided herein is a resin composition containing milled fibreglass and graphene. Also provided herein is a composite material containing cured resin composition, fibreglass reinforced resin containing the composite material and further fibreglass, a laminate including a layer of the fibreglass reinforced resin, and methods of making the resin composition, composite material and fibreglass reinforced resin. The composition, composite material and fibreglass reinforced resin and laminate find use in, for example, the construction of swimming pools and spa pools.