Abstract: A low profile spa jet having a structure allowing for the use of a jet housing for both threaded/nut and grommet installation, wherein the jet protrudes into the spa tub less than 0.5?. The low profile spa jet also can have a jet face/flange that is interchangeable between threaded and grommet jet bodies without changing the relationship to the spa wall, wherein the jet protrudes the same amount in the installed state for both styles of jet body. The low profile spa jet also can have a jet face/flange that is removable and/or interchangeable before and after the jet body and jet internal are installed in the spa.

Abstract: A pump unit for a prefabricated swimming pool, the unit having a pump wall panel and a mount connected to or integral with the pump wall panel. There is also a pump located or locatable at the mount. The arrangement is such that when the pump unit is in use the pump is able to drive a current of water through the pump wall panel into a pool sufficient to enable on the spot swimming inside the pool.

Abstract: Provided is an experimental apparatus for simulating lifting operation of deep-sea mining, which relates to the technical field of experimental equipment of deep-sea mining. By this apparatus, dynamic characteristics of a spatial structure when simulating lifting operation of deep-sea mining are solved. The apparatus includes an experimental box, a wave-making mechanism, a flowrate control mechanism, a mining simulation mechanism and a monitoring mechanism. The wave-making mechanism includes a control box and a wave-pushing board for simulating waves. The flowrate control mechanism includes a water pump, a motor, a grating board and a manifold so that the flowrate and the flow volume can be adjusted by the grating board and the manifold. The mining simulation mechanism includes an experimental ship model, a lifting pipe, a material-mixing pipe, a mineral slurry pipe, a material-delivering pipe and a material-returning pipe for simulating lifting operation states.

Abstract: A swimming pool assembly, including a pool body defining a pool top edge and an opposite pool floor member connected by at least one pool wall, a dry area formed within the pool body and defining a dry area wall portion, a dry area bottom portion operationally connected thereto, and an aperture operationally connected to the dry area bottom portion for providing fluid communication from the dry area into the support structure. The dry area includes seating and a central feature, such as a fire pit, pool table, wet bar, or the like. A support structure is provided to support the dry area and is connected to the dry area bottom portion. The support structure further includes a support structure floor member, at least one support structure wall member extending therefrom and connected to the shallow deck portion to define an enclosure, and at least one fluid access aperture formed through the support structure wall member to provide fluidic communication with the enclosure.

Abstract: A modular structure to form a swimming pool radius, and a method of constructing the same, the structure including a wall panel having front and rear surfaces, side surface members extending back from each of the two side edges of the wall panel, top surface members extending back from the top edge of the wall panel, bottom surface members extending back from the bottom edge of the wall panel, upper flange members respectively extending downward from a distal end of each of the top surface members, lower flange members respectively extending upward from a distal end of each of the bottom surface members, a top support band coupled to each of the upper flange members, and a bottom support band coupled to each of the lower flange members, the top and bottom support bands configured to maintain the wall panel in a predetermined arcuate configuration.

Abstract: A pool includes a main pool body defining an inner cavity, and a pillar within the inner cavity which cooperates with the main pool body to define an annular lane therebetween. The pillar provides the pool greater functionality that extends beyond the scope of the traditional pool, such as by enabling a separate pool, a platform, or other structures to coexist with the annular lane within the inner cavity. Further, a flow generating device may be provided to generate a circulating water flow within the pool that moves around the annular lane.

Abstract: A water inflatable splash pad includes a base pad and a ring. The ring may be inflated with a liquid such as water from a garden hose. A plurality of spray orifices are defined in the ring, allowing streams of water to be directed upwardly into the air and onto the base pad. One or more moveable objects such as toy figures, glitter, shapes or other novelty objects may be positioned inside the ring. As the water flows through the ring in a clockwise or counterclockwise direction, the objects translate through the ring in the same direction as the flow of water. A transparent surface on the ring allows users to visually observe the figures as they translate through the ring, providing the appearance of motion of the objects.

Abstract: A molding system for a swimming pool coping having a track for receiving a pool cover includes an adaptor configured to be positioned at least partially within the track, the adaptor having a front wall, a lower portion extending from the front wall, an upper portion extending from the front wall, and an upper flange extending from the upper portion. The molding system may further include a spacer configured to be at least partially positioned between and abut against the lower portion and the upper portion of the adaptor. A tool for removing a molding system includes a blade having a top surface, a bottom surface, and an edge, a base connected to the blade opposite the edge having an abutment arranged substantially coplanar with the bottom surface, and a handle connected to the blade disposed along an axis that is obliquely angled with respect to the bottom surface.

Abstract: Pools, methods of fabricating pools, and pool panel junctions are provided. The pool includes a first internal surface having a first radius; a second internal surface, for example, of a wading pool, having a second radius; a third internal surface having a third radius, different from the second radius; and a junction where the first internal surface transitions to the second internal surface at a first elevation and the first internal surface transitions to the third internal surface at a second elevation, different from the first elevation. The pool panel junction includes at least one elongated member having a pair of opposing sides defining planes that converge at an apex, such as, a triangular member, and wherein each of the opposing sides is adapted to engage an adjacent connector operatively mounted to a pool panel. An elongated pool panel structural member and a method of fabricating a pool are also provided.

Abstract: A Exercise Pool is disclosed herein having a rigid frame modular in design to allow for improved delivery and assembling. As shown the system may be configured with a box like structure providing containment of the flow head and may be configured with a removable walk deck having an air gap built in. As disclosed the treadmill swimming pool system as its general configuration is safer for users as it inhibits and/or eliminates hair and body entrapment. As disclosed it has a balanced flow which better replicates or reproduces actual swimming conditions for an enhanced user experience. The propulsion system may be controlled with a variable frequency drive (VFD) to allow for improved swimming conditions and control of same.

Abstract: A method of operating a swimming pool with a circulating water flow. The method including the steps of discharging a jet of water and splitting the flow of water. The discharging step including the discharging of a jet of water from an outlet at a head end of the swimming pool into a swimming compartment, whereby the jet of water flows in a primary flow path toward a foot end of the swimming compartment. The splitting step including the splitting of the flow of water to define two circuitous flow paths, each said flow path having a return flow path flowing within said swimming compartment in a direction generally opposite to said primary flow path back toward said head end.

Abstract: A inflatable water slide assembly includes a slide that may be positioned on a support surface thereby facilitating the slide to be slid upon. A bladder is coupled to the slide. A lighting unit is coupled to the slide to selectively illuminate the slide. A spraying unit is coupled to the slide and the spraying unit is selectively fluidly coupled to a fluid source thereby facilitating the slide to be filled with a fluid. The bladder retains the fluid on the slide. The spraying unit continuously recycles the fluid to spray the fluid onto the slide without being fluidly connected to the fluid source.

Abstract: A current generator for a swimming system may include multiple entrainment pumps that discharge a flow of water into a pool. The entrainment pumps may each have a nozzle, a venturi and an entrainment inlet. In use, the flow of water from the nozzle into the venturi causes water at the entrainment inlet to flow into the venturi along with water from the nozzle. Each entrainment pump is arranged such that the fluid that flows out of the venturi passage is directed within a main passage, and the flow from multiple venturis may be combined and may be directed at least partially against the force of gravity before that fluid is directed out of the main passage outlet and into the pool. In at least some implementations, the fluid flows for at least one foot between the venturi and the main passage outlet.

Abstract: A foldable, portable fabric children's wading pool for installation in the ground and which has improved stability characteristics is provided. The pool includes a waterproof fabric base, a middle stabilizer section with a foam stiffening strip, and a sand anchor section with sleeves for holding a weighting material such as sand. The pool is set up by digging a hole in the ground and forming berms along the edges of the hole. Then, the pool is unfolded and positioned such that the waterproof fabric base is in the hole, the middle stabilizer section is on the top of the sand berm, and the sand anchor section extends downwardly and outwardly from the edge of the sand berm. Then, a weighting material is loaded into the sand anchor section and the pool is filled with water, preferably using the waterproof bag that also serves as a storage and transport bag for the pool when folded.

Abstract: A recreational slide is presented having a lubricious top surface having an entry end and an exit end. Two side tubes are affixed laterally along each side of the slide to prevent water and users from sliding off the slide while in use. One or more water sprayers are located along the interconnection between the slide and one or both of the tubes to provide a continuous water supply to the surface of the slide. The exit end of the tube is configured with a connecting flap which removably attaches to the entry end of a tube of an adjoining slide to make a seamless transition between tubes. In addition, the water sprayers are configured so that the exit end of one water sprayer is interconnectable with the entry end of an adjoining water sprayer to make a seamless transition between water sprayers when interconnected.

Abstract: An apparatus for providing mist to a user, where the apparatus has multiple misting nozzles grouped into zones of one or more misting nozzles. The misting nozzles are supplied water from a supply line, and valves controlling the flow of water through the supply line and to the misting nozzles of each zone.

Abstract: A flow duct is provided in which water is caused to flow by way of a delivery device disposed in a circulation line. In order to be able to adapt the flow inside the duct to the particular requirements, and/or achieve a laminar flow over the entire flow region, a plurality of circulation lines is provided, each having a controllable delivery device, wherein the circulation lines lead into the flow duct separately from each other, and wherein the discharge openings of the circulation lines are distributed over the face wall of the flow duct.

Abstract: Disclosed is a whitewater park and whitewater park systems. A recreational waterfall system for traversal by watercraft that includes at least one headgate to produce a surge of water over a waterfall and to limit access to the waterfall by watercraft. A recreational watercraft launch that accelerates a watercraft while traversing said waterfall and a downstream crest a variable exit geometry causes the watercraft to be directed in an upward direction. A recreational waterfall has water flowing over a crest with variable cantilever determining a distance from the edge that the water flowing over the crest impacts water in the pool. A whitewater park has multiple routes of varying difficulties between pools.

Abstract: The invention relates to a kit for a counter-current swimming pool, wherein water is pumped inwards on a defining wall of a swimming pool (1) along the entire horizontal extension thereof and is discharged on the opposite boundary wall along the entire horizontal extension thereof. In order to enable retrofitting of the kit into existing swimming pools, an insert (2, 3) is formed or incorporated into the swimming pool (1), comprising a cover plate (4, 5) which defines the swimming area below and from which boundary walls (6, 8) emanate. The boundary walls extend in a parallel or substantially parallel manner as far as the bottom of the swimming pool, wherein, in the region between the boundary walls (6, 8), axial propelling means, i.e.

Abstract: The invention discloses a process to implement and maintain water bodies larger than 15,000 m3 for recreational use, which comprises the following steps: a.—providing a structure able to contain a large water body larger than 15,000 m3; b.—feeding the structure of step (a) with inlet water; c.—measuring water pH; d.—adding an oxidizing agent to the water contained in the structure of step (a), e.—adding a flocculating agent in concentrations within 0.02 and 1 ppm with maximal frequencies of 6 days and cleaning the bottom of the structure of step (a) with a suction device to remove precipitated impurities from the bottom of said structure, and; f.—generating a displacement of surface water containing impurities and surface oils by means of the injection of inlet water according to step (b), which generates said displacement in such a way to remove said surface water arranged in the structure of step (a), which together with step (e) replaces traditional filtering.

Abstract: Described are variations of a residential splash-pad system and kit for installation thereof. A system can comprise a residential water pump, a water filter, a water distribution valve, nozzles, a controller, and a drain. Some variations can include a heater, an ozonator, a ball valve, a three-way valve, an above-ground water feature, and/or a pool. The components can be compatible with and ready for installation in a system with each of the other components.

Abstract: A surface composition for reducing degradation and fading of surfaces subjected to extended periods of submersion in an aqueous liquid includes at least one clear barrier layer and at least one under layer, wherein the clear barrier layer is in use, disposed atop the under layer and in contact with the aqueous liquid whereby the clear barrier layer protects the structure and appearance of the under layer. The clear barrier layer provides structural protection against degradation from chemical attack and from fading due to UV exposure.

Abstract: Structures are provided that have an enclosed interior space that can be used to hold and contain water or other matter. The interior space is defined by an enclosing wall and a base that are both waterproof to prevent leakage of the water or matter contained in the interior space. None, one or more frame members can be provided as part of the enclosing wall and the base, or a frame member can be provided as part of a rim member. The frame members can be foldable to allow the resulting structure to be twisted and folded to reduce the overall size of the structure.

Abstract: A composite article includes an acrylic layer, a UV-cured layer formed from a UV-curable composition, and a polyurethane backing layer. A method of forming the composite article includes applying the UV-curable composition to the acrylic layer such that the composition is between the acrylic layer and the polyurethane backing layer to enhance bonding between these layers. The UV-curable composition includes at least one monomer which is an ethylenically unsaturated methacrylate monomer, an ethylenically unsaturated acrylate monomer, or both. The at least one monomer has a hydroxy functional group. The monomer is compatible with the acrylic layer and the hydroxy functional group of the monomer is reactive with a polyisocyanate from the polyurethane backing layer. The UV-curable composition also includes a curing initiator that is reactive with the monomer. Upon exposure of the UV-curable composition to UV electromagnetic radiation, the curing initiator enables the composition to cure to the acrylic layer.

Abstract: A bathing pool assembly with water full of nano-scale ozone bulbs for rehabilitation has a bath, a reservoir and two circulating systems. The bath and the reservoir both have a main inlet and a main outlet. The reservoir further has a tap to allow water to flow out of the reservoir, which is provided for people to drink or gargle. The circulating systems are connected respectively to and communicate respectively with the bath and the reservoir to recycle water. The circulating systems are further connected to a gas generator assembly having an oxygen generator and an ozone generator to provide water full of oxygen and ozone to release free radicals and anions.

Abstract: A poolside connector system and method for use with swimming pool race timing systems and signaling devices. A deck plate or similar poolside signal junction is provided with an optical receiver terminal, and a cable connection from a poolside signaling device such as a touchpad or backup button is provided with an optical transmitter terminal that can be plugged into the deck plate terminal. Electrical signals from the touchpad and backup button representing completed laps are transmitted as optical signals to the deck plate junction. The optical connection at the deck plate is non-conductive and electrically sealed from the poolside environment, and thus has no exposed electrical terminals to corrode. The low voltage DC current on which the optical terminals operate is provided in sealed fashion to the electrically insulated optical terminals, in a preferred form via an inductive power coupling whose halves are sealed in the deck plate and the removable cable connection.

Abstract: The bathtub/hot tub is positioned in an opening in the wall of a house. The opening has the same shape as the plan view of the bathtub/hot tub. For a circular bathtub/hot tub, the opening is semicircular. A movable cover in the form of a quarter hollow sphere is pivoted to move from the position where it covers the outer half of the bathtub/hot tub while leaving the inner half inside the house wall accessible. It is movable to an inner position where it seals against the inner portion of the bathtub/hot tub and against the opening in the house wall to leave the bathtub/hot tub accessible from outside of the wall. In either case, the inside of the house is closed against the outside ambient conditions.

Abstract: A water circulating apparatus and method for using in a built swimming pool or a swimming pool during building. The apparatus includes: a container disposed in the swimming pool and the container has a water outlet and a water inlet respectively on a front end and a rear end, the water outlet and inlet are under the water level in the swimming pool, and a water circulation actuating mechanism provided on the front end of the container for pushing and lifting water from the front end of the container and controlling flow rate of water to flow out from the water outlet to the other end of the swimming pool, and to cause the water in the rear end of the swimming pool to flow into the container from the water inlet, and to flow toward the water outlet through the container, thus effecting water circulation in the swimming pool.

Abstract: Collapsible structures are provided that have an enclosed interior space that can be used to hold and contain water or other matter. The interior space is defined by an enclosing wall and a base that are both waterproof to prevent leakage of the water or matter contained in the interior space. None, one or more foldable frame members can be provided as part of the enclosing wall and the base, or a foldable frame member can be provided as part of a rim member. The frame members allow the resulting structure to be twisted and folded to reduce the overall size of the structure.

Abstract: A water tub including a fluid delivery system utilizes a removeable carrier to provide fluids to the fluid delivery system. In some instances, the carrier is disposable such that depletion of the fluids within the container results in the carrier being thrown away and replaced by an unused carrier. In other instances, the carrier is re-usable and is removed from the fluid delivery system when the fluids within the carrier need to be replenished. In some instances, the carrier can be manually attached and removed from the fluid delivery system without the use of any tools. In some such instances it will include a latching mechanism temporarily coupling the carrier to the fluid delivery system. The carrier may include a plurality of fluid containers, each container containing a fluid used for different types of maintenance of the water tub. The delivery system may utilize a dosing engine.

Abstract: A motion responsive swimming pool safety device that has a control panel. A perimeter laser electrically is connected to the control panel. The perimeter laser is located peripheral to the swimming pool and generates a perimeter laser beam. A perimeter sensor is electrically connected to the control panel. The perimeter sensor is located peripherally to the swimming pool and is capable of sensing the perimeter laser beam. A perimeter alert is electrically connected to the control panel. The perimeter alert is capable of alarming upon interruption of the perimeter laser beam to the perimeter sensor.

Abstract: A modular step system for in-ground swimming comprising a bottom central hub, a brace assembly, a top central hub, a tread support assembly, a step form and a liner. The components of the modular step system interlock and snap together without fasteners. Also, the components of the modular step system are obtained by molding plastic material or curing of a curable material. The modular step system is installed on a level concrete floor of a swimming pool and designed to be rigidly fixed from behind to adjacent pool walls. The modular step system is adaptable to a pool having a vinyl liner, structurally sound regardless of size, easy to assemble, consistent in size, and cost-effective.

Abstract: A non-slip platform for location adjacent to a body of water providing a person with traction despite the presence of water on the platform, wherein the platform includes an upper portion; a fluid-draining topography at the upper portion that channels the water to minimize water contact with the person on the platform; and a non-slip surface coating on the fluid-draining topography for traction, said non-slip surface coating including an abrasive layer. The present invention is also directed to a method of making the non-slip platform for location adjacent to a body of water, the method including the steps of forming a fluid-draining topography at the upper portion of the non-slip platform, preparing the fluid-draining topography to support an abrasive layer, depositing the abrasive layer on the prepared fluid-draining topography, and providing a topcoat to the fluid-draining topography.

Abstract: A modular rounded corner piece for forming rounded corners of a pool. The modular rounded corner piece may include a plate portion and a liner receptor portion. The liner receptor portion may include a channel formed by a top wall and a bottom wall. The channel may align with a pool liner receptor slot in the coping around the perimeter of the pool. Thus, a continuous liner receptor slot may be formed around the interior circumference of the pool for receiving an edge of a pool liner thereinto. The modular rounded corner piece may be installed on the pool sidewall to provide a gapless alignment between the liner receptor on the pool sidewall and the liner receptor in the rounded side of the corner plate.

Abstract: A fence system is provided for use in conjunction with an above-the-ground flexible wall swimming pool having a liner with an upper rim defining a closed area and a plurality of spaced supports each having a lower end in engagement with the ground and an upper end connected to and supporting the liner upper rim. The fence system includes at least two spaced apart and elongated struts wherein each strut has a first end and a second end. A hanger is secured to each strut adjacent its first end and this hanger is dimensioned to fit over and be supported by the upper rim of the liner. A fastener assembly secures the second end of the strut to one support while a fence section is secured to the first ends of the struts so that the fence section extends upwardly from the upper rim of the liner.

Abstract: A pool insulation system including storage means 2 for storing a plurality of buoyant articles 50, first transfer means 30 for transferring the buoyant articles from the storage means 2 to a pool 1 and second transfer means 3,4 for transferring the buoyant articles from the pool to the storage means 2. The second storage means comprises a flexible boom 3 and a motorised craft 4 manoeuvrable around the pool with the boom attached thereto so that the buoyant articles 50 on the surface of the pool are contained in an enclosure defined by the flexible boom. Means are provided to change the length of the flexible boom on the surface of the pool 1. The invention also relates to a method of removing buoyant articles from the surface of a pool 1, an automatic boom deployment system for a pool, pool apparatus and a pool docking system.

Abstract: A water recreational apparatus, such as a portable spa, hot tub, above ground pool, a recirculating bath tub has a water recirculation system wherein water from the basin of the apparatus is recycled through a pump in water jets disposed in the side walls of the basin. At least one water input valve for controlling the flow of water into one or more of the water jets is controllable by a remote controllable motor. A control panel for controlling the remote controllable motor is disposed proximate to at least one of the seat locations within the water basin.

Abstract: Forms for building and assembling water containment holders such as but not limited to inground spas, pools, manmade ponds and fountains. The forms can have an L-shape with downwardly protruding members for allowing the forms to be placed about a base foundation having receiving openings for the protruding members. Lower walls, seats and backrests can be placed about the forms to assemble the water containment holder. All the components including the base, the forms, the seats, lower walls, and backrests can be modular components that are easily transported and assembled by an individual installer.

Abstract: A prefabricated pad for a pool and its associated method of installation under the liner of an above-ground pool. The prefabricated pad is interposed between the ground surface and the pool liner, wherein the prefabricated pad cushions the pool liner, reduces contact stresses against the pool liner and prevents the pool liner from being punctured by any object present below the pool. The prefabricated pad also supports the pool liner as the pool liner turns from the vertical walls of the pool to the flat bottom of the pool.

Abstract: A drain cover for a swimming pool, spa or tub drain that includes a hollow tube or shell having a slot formed in a wall therein and a fitting connecting the drain cover with respect to the drain.

Abstract: A swimming pool utilizing deep-sea water to promote hygienic swimming and overall health. The pool is equipped with a deep-sea water collecting device which supplies the deep-sea water thereto and drainage equipment for maintaining a constantly fresh supply of deep-sea water in the pool. The pool may be equipped with a propulsion device such as a propeller, a large number of extensions on the bottom surface for avoiding sharks, facilities for fishing on its side, a means for generating fine air bubbles to be mixed into the deep-sea water, a solar power generation means, a wind power generation means and a deep-sea water desalination equipment. In addition, a pool using deep-sea water, accommodation facilities, dining facilities, facilities of a beauty shop/fitness gymnasium, fish breeding facilities and hydroponic facilities, which collect and use deep-sea water, are built on the beach.

Abstract: The pipes associated with an in-ground swimming pool can be supported by a support that includes a base and two telescopingly engaged tubular sections. A U-shaped element is located on one end of the tubular sections and has a pad on which the pipe rests. A lock connects the two tubular sections together once the height of the support is selected.

Abstract: A cladding device for the pond of a swimming pool or the like includes a slab as well as side walls made of concrete or the like. This device is characterized in that it is formed of tightly juxtaposed glass plates applied, through mounting mechanisms, against the slab and the side walls of the pond, on the inner side of the latter.

Abstract: A warm/cold double-circulation water filter system and swimming pool arrangement comprises, a swimming pool, a double-circulation water filter system, a water pipe system, a heater. The present invention concentrated the valves in order to convenient management and control, to reduce valves amount and to offer a multiform elevated temperature manner.

Abstract: The invention is an inflatable children's pool with a centrally located safety seat accommodating a seated infant which may be filled with water or sand to permit a child to safely play at home or at the beach without constant and immediate supervision. The device also includes a detachable shade to shield the seated infant from harmful exposure to the sun.

Abstract: In an adjustable pedestal for a starting platform for one end of a swimming pool, two telescoping members, namely an upper, inner, tubular member and a lower, outer, tubular member, are fastened releasably to each other so as to define a generally upright column of an adjustable length. An upper step is mounted to an upper bracket and a lower step is mounted to a lower bracket. Certain bolts are used for fastening the upper and lower members releasably to each other and for mounting the upper bracket, to which the upper step is mounted, releasably to the column. Other bolts are used for mounting the lower bracket, to which the lower step is mounted, to the column. In some applications, the lower step, lower brackets, and bolts for mounting same are omitted.

Abstract: Support systems for vessels such as above-ground swimming pools are disclosed. Each system may include one or more buttresses adapted to support substantially the entire vertical height of the side wall or each of a series of side walls of the pool. A strapless support system to provide a pool having a deep end is also disclosed. The buttresses, which flare along their lengths, closely match the support they provide each side wall to the outward water pressure present along its height for enhanced reliability. The diminished space required for installation of the disclosed buttresses reduces the surface area required for their associated pool.

Abstract: It is provided a swimming pool on the open sea effective for promoting health, and also surrounding facilities. The pool which floats on the sea is equipped with a deep-sea water collecting device which supplies the deep-sea water thereto. The pool may be equipped with a propulsion device such as a propeller, a large number of extensions on the bottom surface for avoiding sharks, facilities for fishing on its side, a means for generating fine air bubbles to be mixed into the deep-sea water, a solar power generation means, a wind power generation means and a deep-sea water desalination equipment. In addition, a pool using deep-sea water, accommodation facilities, dining facilities, facilities of a beauty shop/fitness gymnasium, fish breeding facilities and hydroponic facilities, which collect and use deep-sea water, are built on the beach.

Abstract: A swimming pool formed in a natural or man-made body of fresh or salt water includes a flooring material which allows water to pass through, but does not allow dirt or other natural sediment to pass through. The flooring material comprises a layer of stones sandwiched between two layers of geotextile material and a top layer of non-skid vinyl or PVC decking material.

Abstract: Method, apparatus and product providing a cantilevered coping about prefabricated stairs of an in-ground liner type swimming pool. Disclosed is a polystyrene form board of desired profile face to effect a complementary fit onto a top of the stairs, fastener means including a saddle bracket for securing the form board onto the stairs and a release structure to enable removing the form board after the poured aggregate coping has cured.