Abstract: A chlorine generator apparatus wherein a housing is adapted to be mounted in an exterior, user-accessible surface of a spa and a chlorine generating electrode cartridge carrying a pair of electrodes is configured to be installable by a user in the housing and to thereafter be removeable by the user for replacement.

Abstract: 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.

Abstract: A publicly accessible urban beach entertainment complex is disclosed, with a man-made tropical, pristine-clear lagoon as the centerpiece of the complex, with surrounding entertainment, educational, sports, and commercial facilities, the complex having controlled public access and providing the look and feel of a tropical beach with clear waters and sandy beaches. In addition a method for efficiently utilizing facilities and land that are vacant, underutilized, have limited uses, or that are contiguous to or nearby recreational, educational, sports, or commercial venues is disclosed. The method providing a publicly accessible urban beach entertainment complex with a centerpiece man-made tropical-style pristine-clear lagoon. The method allows for generating revenue and increasing efficiency by pairing vacant sites, underutilized sites, limited use land, or sites that are contiguous to entertainment, educational, sports, and/or commercial venues with urban beach entertainment complexes.

Abstract: A publicly accessible urban beach entertainment complex is disclosed, with a man-made tropical, pristine-clear lagoon as the centerpiece of the complex. The lagoon includes a surf feature and surrounding the lagoon are entertainment, educational, sports, and commercial facilities. The complex has a controlled public access and provides the look and feel of a tropical beach with clear waters and sandy beaches. In addition a method for efficiently utilizing facilities and land that are vacant, underutilized, have limited uses, or that are contiguous to or nearby recreational, educational, sports, or commercial venues is disclosed. The method providing a publicly accessible urban beach entertainment complex with a centerpiece man-made tropical-style pristine-clear lagoon having a surf feature.

Abstract: A publicly accessible urban beach entertainment complex is disclosed, with a man-made tropical, pristine-clear lagoon as the centerpiece of the complex. The lagoon includes a surf feature and surrounding the lagoon are entertainment, educational, sports, and commercial facilities. The complex has a controlled public access and provides the look and feel of a tropical beach with clear waters and sandy beaches. In addition a method for efficiently utilizing facilities and land that are vacant, underutilized, have limited uses, or that are contiguous to or nearby recreational, educational, sports, or commercial venues is disclosed. The method providing a publicly accessible urban beach entertainment complex with a centerpiece man-made tropical-style pristine-clear lagoon having a surf feature.

Abstract: A publicly accessible urban beach entertainment complex is disclosed, with a man-made tropical, pristine-clear lagoon as the centerpiece of the complex, with surrounding entertainment, educational, sports, and commercial facilities, the complex having controlled public access and providing the look and feel of a tropical beach with clear waters and sandy beaches. In addition a method for efficiently utilizing facilities and land that are vacant, underutilized, have limited uses, or that are contiguous to or nearby recreational, educational, sports, or commercial venues is disclosed. The method providing a publicly accessible urban beach entertainment complex with a centerpiece man-made tropical-style pristine-clear lagoon. The method allows for generating revenue and increasing efficiency by pairing vacant sites, underutilized sites, limited use land, or sites that are contiguous to entertainment, educational, sports, and/or commercial venues with urban beach entertainment complexes.

Abstract: A publicly accessible urban beach entertainment complex is disclosed, with a man-made tropical, pristine-clear lagoon as the centerpiece of the complex. The lagoon includes a surf feature and surrounding the lagoon are entertainment, educational, sports, and commercial facilities. The complex has a controlled public access and provides the look and feel of a tropical beach with clear waters and sandy beaches. In addition a method for efficiently utilizing facilities and land that are vacant, underutilized, have limited uses, or that are contiguous to or nearby recreational, educational, sports, or commercial venues is disclosed. The method providing a publicly accessible urban beach entertainment complex with a centerpiece man-made tropical-style pristine-clear lagoon having a surf feature.

Abstract: A publicly accessible urban beach entertainment complex is disclosed, with a man-made tropical, pristine-clear lagoon as the centerpiece of the complex. The lagoon includes a surf feature and surrounding the lagoon are entertainment, educational, sports, and commercial facilities. The complex has a controlled public access and provides the look and feel of a tropical beach with clear waters and sandy beaches. In addition a method for efficiently utilizing facilities and land that are vacant, underutilized, have limited uses, or that are contiguous to or nearby recreational, educational, sports, or commercial venues is disclosed. The method providing a publicly accessible urban beach entertainment complex with a centerpiece man-made tropical-style pristine-clear lagoon having a surf feature.

Abstract: A publicly accessible urban beach entertainment complex is disclosed, with a man-made tropical, pristine-clear lagoon as the centerpiece of the complex, with surrounding entertainment, educational, sports, and commercial facilities, the complex having controlled public access and providing the look and feel of a tropical beach with clear waters and sandy beaches. In addition a method for efficiently utilizing facilities and land that are vacant, underutilized, have limited uses, or that are contiguous to or nearby recreational, educational, sports, or commercial venues is disclosed. The method providing a publicly accessible urban beach entertainment complex with a centerpiece man-made tropical-style pristine-clear lagoon. The method allows for generating revenue and increasing efficiency by pairing vacant sites, underutilized sites, limited use land, or sites that are contiguous to entertainment, educational, sports, and/or commercial venues with urban beach entertainment complexes.

Abstract: A publicly accessible urban beach entertainment complex is disclosed, with a man-made tropical, pristine-clear lagoon as the centerpiece of the complex, with surrounding entertainment, educational, sports, and commercial facilities, the complex having controlled public access and providing the look and feel of a tropical beach with clear waters and sandy beaches. In addition a method for efficiently utilizing facilities and land that are vacant, underutilized, have limited uses, or that are contiguous to or nearby recreational, educational, sports, or commercial venues is disclosed. The method providing a publicly accessible urban beach entertainment complex with a centerpiece man-made tropical-style pristine-clear lagoon. The method allows for generating revenue and increasing efficiency by pairing vacant sites, underutilized sites, limited use land, or sites that are contiguous to entertainment, educational, sports, and/or commercial venues with urban beach entertainment complexes.

Abstract: A publicly accessible urban beach entertainment complex is disclosed, with a man-made tropical, pristine-clear lagoon as the centerpiece of the complex, with surrounding entertainment, educational, sports, and commercial facilities, the complex having controlled public access and providing the look and feel of a tropical beach with clear waters and sandy beaches. In addition a method for efficiently utilizing facilities and land that are vacant, underutilized, have limited uses, or that are contiguous to or nearby recreational, educational, sports, or commercial venues is disclosed. The method providing a publicly accessible urban beach entertainment complex with a centerpiece man-made tropical-style pristine-clear lagoon. The method allows for generating revenue and increasing efficiency by pairing vacant sites, underutilized sites, limited use land, or sites that are contiguous to entertainment, educational, sports, and/or commercial venues with urban beach entertainment complexes.

Abstract: A system, method, and apparatus for simulating immersion in a confection may comprise a container, a plurality of fanciful elements removably positioned within the container, and one or more structural elements attached to the container. In some embodiments, the present invention may further comprise a platform that may be configured to support one or more surfaces of the container. In some embodiments, the fanciful elements may be synthetic multicolored sprinkles.

Abstract: An above-ground pool insulation assembly and method of insulating an above-ground pool provides at least one modular panel fabricated from perimeter and reinforcement steel bar that form a rectangular frame. The frame is encapsulated by a metallic sheet to create a pocket of insulating air. An adhesive metallic tape secures the metallic sheet to the frame. Resilient strips attach to the edges of the cover panel to help prevent moisture from entering the mount side. The modular panel mounts mechanically and magnetically to the peripheral sidewall of an above-ground, metal sided swimming pool, so as to insulate the pool, and thereby reduce heat loss from the body of water in the pool due to efficiency of conservation of energy exchange with the environment.

Abstract: A publicly accessible urban beach entertainment complex is disclosed, with a man-made tropical, pristine-clear lagoon as the centerpiece of the complex. The lagoon includes a surf feature and surrounding the lagoon are entertainment, educational, sports, and commercial facilities. The complex has a controlled public access and provides the look and feel of a tropical beach with clear waters and sandy beaches. In addition a method for efficiently utilizing facilities and land that are vacant, underutilized, have limited uses, or that are contiguous to or nearby recreational, educational, sports, or commercial venues is disclosed. The method providing a publicly accessible urban beach entertainment complex with a centerpiece man-made tropical-style pristine-clear lagoon having a surf feature.

Abstract: There is provided a structure for extending over a pool. The structure includes a first section secured to a second section at at least two locations. Each of the first section and the second section may include two longitudinal members joined by a set of transversally-disposed lateral members. Furthermore, the first section and the second section further includes a set of transparent members disposed in a longitudinal direction overtop the set of transversally-disposed lateral members. Furthermore, the set of transparent members form a continuous platform secured by a set of stops disposed at each end of the two longitudinal members. The first and second section may be secured using a set of bolts, pins, screws, or combinations thereof.

Abstract: An apparatus and method for a swimming pool cover is provided. At least two stationary support members are located proximate to a swimming pool and rises vertically above the swimming pool. A substantially rigid cover element frame is supported by said support members and is movable in a substantially vertical direction between a lowered position proximate to the top surface of the swimming pool and a raised position remote from the top surface of the swimming pool. A flexible cover element is supported by said cover element frame, wherein the flexible cover element is stretched proximate to said cover element frame. A collapsible upper vertex is formed within the cover element to prevent a quantity of precipitation from collecting on top of the cover element. A vertical movement control system is located partially within at least one of the support members and controls movement of the cover element frame.

Abstract: An adjustable weight supporting apparatus is provided with a horizontal member, vertical member and legs. The weight supporting apparatus may be used to support the weight of an automobile or other object. The horizontal member may be placed on a lifting device, which may be lifted to contact an object. Legs and the vertical member may be added to the horizontal member to support the weight without a lifting force, which may be temporarily fixed in place with one or more pin. The horizontal member may include an elongated portion and a cuff. Various aspects of the apparatus may be adjusted to support a desired object at a desired height and/or footprint to provide sufficient access under the object.

Abstract: An inflatable swimming pool includes a floor and a number of walls defining a pool interior configured to receive water. A drawing board is integrally formed or otherwise coupled to the pool and includes a selectively inflatable frame configured to securely hold a drawing surface configured to enable a user of the pool to draw or write on the drawing board while playing in the pool. A drawing utensil may be provided with the drawing board such as a water soluble crayon. A water sprayer assembly may be integrally formed with or coupled to the pool and include a port connectable to a water source and configured to deliver water from the water source to a sprayer element configured to spray water into the pool.

Abstract: A canopy system comprising a shading element, a support element, and an attachment element member. The canopy system is adapted to provide shade over at least a portion of an above-ground container. The canopy system is configured to maintain its structure during slightly windy and mild weather conditions.

Abstract: A pump system including a motor, a fluid pump powered by the motor, a temperature sensor, and a controller. The controller including a processor and a computer readable memory storing instructions that, when executed by the processor, cause the controller to receive a first temperature value from the temperature sensor, receive a second temperature value from the temperature sensor, calculate a rate of temperature change by comparing the first temperature value and the second temperature value, calculate a heating offset value based on the rate of temperature change, and calculate an ambient temperature based on the second temperature value and the heating offset value.

Abstract: An oxidizer generating apparatus comprising a cylindrical housing and an electrode assembly attached at one end of the housing comprising at least three vertically disposed electrodes, the electrodes being spaced apart so as to define a water flow path between them, the electrodes comprising titanium outer electrodes and at least one inner diamond electrode

Abstract: Solar panels located on residential roofs can be unsightly in some cases. A swimming pool solar power generator can locate solar panels in or around the sides and/or bottoms of a swimming pool in a manner so as to create electricity from the sun without creating an eyesore. In an embodiment, a pool solar power generator includes a solar cell module disposed in a portion of a swimming pool. The solar cell module can include solar cells and be submerged under water held by the swimming pool. The solar cell module can convert sunlight incident on the solar cells to electricity and transmit the electricity for use at a location external to the swimming pool.

Abstract: A movable building structure is configured to selectively enclose an area. The structure includes at least one side wall and an end wall attached thereto. The side wall comprises a number of individual panels that are independently movable along a track secured to the ground. The panels are selectively collapsible such that they may travel along the track and overlap one another when in a collapsed or stowed position. The structure may be configured in any number of intermediate positions wherein the panels are partially collapsed. Roof panels may be attached to the side walls for movement therewith, or alternatively, the roof panels may operate independent of the side walls to extend and retract between an open and collapsed configuration.

Abstract: A movable enclosure is configured to selectively enclose an area. The enclosure includes at least one side wall and an end wall attached thereto. The side wall comprises a number of individual panels that are independently movable along a track secured to the ground. The panels are selectively collapsible such that they may travel along the track and overlap one another when in a collapsed or stowed position. The enclosure may be configured in any number of intermediate positions wherein the panels are partially collapsed. Roof panels may be attached to the side walls for movement therewith, or alternatively, the roof panels may operate independent of the side walls to extend and retract between an open and collapsed configuration.

Abstract: A spa includes a housing forming a vessel, an opening formed in the vessel, a valve fluidly coupled to the opening, a liquid sensor configured to measure an amount of liquid in the vessel, and a controller operatively connected to the valve and the liquid sensor. The controller operates the valve to drain liquid the vessel through the opening, and operates the valve to fill the vessel with liquid from a liquid source when a predetermined amount of liquid has drained from the vessel.

Abstract: According to one aspect, embodiments of the invention provide an aquatic-based toy comprising a pool including an interior portion and an exterior wall, the exterior wall including at least one attachment site, a sprinkler configured to be removably coupled to the at least one attachment site of the exterior wall, the sprinkler including at least one spray opening configured to spray a stream of water in a selected direction, and a slide configured to be removeably positioned over the exterior wall and to extend into the interior portion of the pool.

Abstract: Various aspects are directed to a spa cover lifter for lifting a spa cover comprising a first section and a second section pivotably coupled to the first section at a hinge interface. The lifter may comprise a first frame member, a second frame member, a drive system and a first cable. The first frame member may be coupled to the first section of the spa cover. The second frame member may be coupled to the second section of the spa cover, and the first and second frame members may be coupled to one another about the hinge interface. The first cable may extend from the drive mechanism to the first frame member.

Abstract: A spa heats or cools air in the air space surrounding the water containment vessel to heat or cool the water in the water containment vessel. The air is heated and cooled and is circulated within the spa cabinet in contact with the underside of the tub and the plumbing for transferring or absorbing heat from the water through the tub and the plumbing. The air is heated by a solid state thermoelectric device or a conventional space heater and is cooled using a solid state thermoelectric device. Preferably a single thermoelectric device is mounted through a wall in the spa cabinet and is used for both heating and cooling the air in the air space.

Abstract: A novel skimmer port flow diverter for use with swimming pools having a dual port skimmer apparatus includes an inverted U-shaped conduit having at each lower end of a pair of vertically downwardly disposed legs thereof a tapered elastomeric bushing insertable into suction and main-drain ports, respectively, at the bottom of a skimmer box to thus enable substantially all of the water contained in a swimming pool basin to be drawn out at the maximum flow rate of which an existing swimming pool circulation and filtration pump is capable.

Abstract: This invention relates to a single pump water circulation system for a swimming pool comprising: a venturi skimmer; a pump with a suction side and a discharge side; a suction drain; a pool return line; at least one pool inlet; fluidically connected to the pool return line; a pump inlet on the suction side having an inlet selector to fluidically connect the pump to: the venturi skimmer, the suction drain, or a combination of the venturi skimmer and the suction drain; a pump outlet on discharge side having an outlet selector to fluidically connect the pump to: the venturi skimmer, the pool return line, or a combination of the venturi skimmer and the pool return line; and wherein the pump is a multispeed pump or a variable speed pump. This invention also relates to a method of circulating water for a swimming pool comprising this circulation system.

Abstract: A method of controlling a liquid movement system, such as a pool system. The method includes receiving a maximum time that an auxiliary load is to operate, receiving a minimum pump speed of a pump system that pumps a liquid through the auxiliary load, monitoring the time that an auxiliary load has been in operation, monitoring the pump speed of a pump system that pumps a liquid through the auxiliary load, and deactivating the auxiliary load if the maximum time or minimum pump speed has been met. Also disclosed are a pool system and a controller for controlling the pool system.

Abstract: A foundation system and a roof system are especially useful for flexible indoor/outdoor space structures. The foundation system has adjustment features for leveling of flexible structures. The roof system features independent roof segments. The foundation system includes one or more foundation members which have a frame, a base and an adjustable height member. Also disclosed are drive, connection, level sensing and control elements for the foundation system. The roof system includes a fixed bean with roller tracks, a set of overlapping roof segments, and a header beam also with roller tracks.

Abstract: A free floating canopy shade system for use in a pool or at a beach. The canopy has four legs each leg supported by an open top float, each float having an outer tapered cylindrical wall and an inner cylindrical wall, the inner cylindrical wall being sized to receive a leg, an attachment to attach the leg to the float. The float being water tight and open at the top. Wherein an open shaded area is created beneath the canopy bounded only on four corners by each float.

Abstract: A combination ladder assembly and pool includes a pool having a side wall and a support member positionable along an inner surface of the side wall of the pool. The support member may include at least one aperture. Additionally, the combination ladder assembly and pool further includes a ladder positionable along an outer surface of the side wall of the pool. The ladder may be removably coupled to the support member. The ladder further includes at least one leg having a first end and a second end and a plurality of steps. The plurality of steps may be coupled to the leg of the ladder between the first end and the second end of the leg. The ladder may be moveable between a use position, permitting ingress into the pool, and a storage position. When the ladder is in the use position, the leg of the ladder is supported by the support member. When the ladder is in the storage position, the ladder extends from the aperture of the support member to cantilever from the support member.

Abstract: An overflow device assembly for a vessel such as a bathtub or sink is provided. The overflow device comprises a tieplate comprising a mating flange attached to a first end of a pipe and a faceplate operable to slide onto the tieplate. The faceplate comprises a front cover portion, a backside and a groove. The pipe is operable to be concentrically disposed with a hole in a wall of the vessel. The groove is located on the backside of the faceplate, and the mating flange slides along and inside the groove. Once in place, the front cover portion of the faceplate covers the first end of the pipe.

Abstract: Generators of hydroelectric energy are detailed. The generators are designed principally for use in connection with swimming pools and spas and may use the generated electricity to operate a valve, power a gas heater, or illuminate pool lights, in addition to any other appropriate uses for lower voltage electrical energy.

Abstract: A pool fluid control system utilizes a fluid collection tank having an intake enclosure extending therefrom. The intake enclosure has an open grate which is configured to be positioned flush with the pool wall. Water which accumulates between the pool wall and the liner flows through the grate, into the intake enclosure, and then into the collection tank. A sump pump or other submersible pump within the collection tank then discharges the water out of the collection tank for disposal at a location away from the pool. This constant monitoring and then automatic removal of unwanted water from the space between the liner and the pool wall serves to maintain the integrity of the liner in relation to the wall.

Abstract: An above-ground, compact, multi-purpose pool, particularly for practicing stationary swimming has three portions that make up a compact unit or are arranged so as to be assembled to form a compact unit. The three portions include a pool capable of containing a volume of water and comprising a bottom, two longitudinal walls, and two end walls; a dressing/undressing and/or showering cabin placed on one side of the pool; and a chamber placing said cabin in communication with the pool. The chamber includes an upper space mounted on the portion of the pool that is adjacent to said cabin, as well as two side walls, a front wall, and a covering wall. The front wall has an opening in communication with the free space above the pool, wherein the opening is provided with a door.

Abstract: A water pool combination includes a foldable construction having a rear member extended from a base member, an upper member pivotally coupled to the rear member, a front member pivotally coupled to the base member and coupled to the upper member, one or more lock members selectively locking the front member to the upper member for forming a three-dimensional chamber in the construction, the front member and the upper member are foldable relative to the base member and the rear member to a tilted position, an insert is engaged into the construction for receiving a water, and an exercise device is disposed in insert for conducting an in-water exercise operation.

Abstract: A pool shell molding system that enables accessories such as tables, chairs, parasols, basketball rims, and volleyball nets to be selectively and easily attached and removed. The pre-formed mold includes a recessed section with an outer edge that contacts and grips the various pool accessories. The depth of the recess is reduced by including a lip section extending from the bottom of the pool accessory, forming a contact and seal with the pool shell. Additionally, the pre-formed mold also includes an extended section with an outer edge that contacts and is gripped by the various pool accessories. The pre-formed mold can also secure a pole structure that includes a pole and a base member attached to the pole that facilitates a flexing locking relationship with the pool surface.

Abstract: An oxidizer generating apparatus comprising a cylindrical housing and an electrode assembly attached at one end of the housing comprising at least three vertically disposed electrodes, the electrodes being spaced apart so as to define a water flow path between them, the electrodes comprising titanium outer electrodes and at least one inner diamond electrode

Abstract: To reposition parts of the body, pool therapy fixtures are used in a pool to develop neuromuscular recognition of the normal human musculoskeletal, respiratory and neurological patterns with feed forward activation. Individual muscles are isolated using the buoyancy of the pool, and in some cases applying streams of water within the pool against specific muscles. Selected forces may be applied using water jets in multiple directions in a programmed sequence with at least one pool therapy fixture to provide neuromuscular training.

Abstract: A control system for a bathing installation which has one or more electrically powered devices. A line voltage service is connected through a GFCI to power the electrically powered devices, the GFCI adapted to interrupt the service upon detection of a ground fault. A trip circuit may induce a ground fault and trip the GFCI in response to a trip signal, thereby disabling application of electrical power to the electrically powered devices. An electronic circuit is responsive to a fault condition for generating the trip signal.

Abstract: A spa enclosure apparatus has a convertible awning spanning over and spaced generally vertically from a hot tub when in use, and preferably an insulated cover assembly for covering the hot tub when not in use. Preferably, the cover assembly is engaged to and operates in conjunction with the convertible awning. The convertible awning has a canopy supported by and extending between two substantially parallel arcuate rods of the convertible awning. Each arcuate rod preferably connects to a substantially vertical shaft preferably of the cover assembly located substantially near respective rear corners of the spa. The arcuate rods extend upward from the vertical shafts, bend, and project over the hot tub to respective forward corners of the hot tub. Preferably, two substantially vertical columns of the convertible awning project upward from the vicinity of the respective forward corners to engage the distal ends of the arcuate rods.

Abstract: A hydrotherapy apparatus used with a pool includes a hydrotherapy jet having an inlet and an outlet through which a pressurized water jet is expelled. A mounting structure immerses the hydrotherapy jet into water in the pool and is adjustable for moving the hydrotherapy jet into different positions to direct a water jet against different parts of the body of a person in the pool. A floating recliner supports a user of almost any size in a seated or reclining position while at least partially immersed in the water in the pool. A water circulation system pumps water in the pool into the inlet and out the outlet of the hydrotherapy jet to provide the pressurized water jet.

Abstract: A floating spa cover generally comprises an inflatable insulating and soar heating central portion surrounded by one or more independently inflatable adjustable rings. The inflatable central portion comprises a center section and a peripheral ring. The center section covers most of the spa water surface and includes an upper film of substantially transparent plastic and a lower film of translucent plastic separated by a gas-filled space. The first adjustable ring, connected to the central portion so as to be selectively removable, encompasses the central portion and is independently inflatable to selectively adjust the area of the cover over a first range of areas. The second adjustable ring, connected to the first adjustable ring so as to be selectively removable, encompasses the first adjustable ring and is independently inflatable to selectively adjust the area of the cover over a second range of areas.

Abstract: Briefly stated, a pool to be assembled and emplaced in a slightly concaved location is available in a container. Similarly, an integrated beach cart and cooler system can house the self-assembly pool, and various other articles enabling parents to travel to and from the beach. Process, products and electronic commerce methods thereby are likewise disclosed, allowing consumers to make informed choices to review and purchase the instant teachings conveniently. A customer rewards function is exchanged for data-sharing about age and size of children to allow creation of a database of children for ongoing monitoring of upcoming purchasing needs.

Abstract: An improved storage receptacle for an automatic swimming pool cleaning device that incorporates a cleaning head secured to a retractable hose includes a barrier that is selectively operated to block the opening of the storage receptacle and prevent the cleaning head from entering the storage receptacle during use and becoming trapped. The barrier is a rod slidably disposed within a tube adjacent to the receptacle opening, and hydraulic action drives the rod upwardly to block the opening of the storage receptacle.

Abstract: A retention system for holding and mounting a cover cap to a plumbing fitting having a tubular terminal that projects at an opening through a bath or shower wall, comprising a retainer ring fitting on said tubular terminal and tightenable toward said wall, a series of retention cams on said ring and space about a longitudinal axis defined by the ring, there being gaps between successive cams, and there being retention shoulders on the cams, the retention shoulders facing in directions toward said wall, for retaining holders on the cover cap, after said holders have been passed longitudinally through said gaps and after the cap has then rotated to cause said holders to slidably engage the cams and became wedged against said retention shoulders.

Abstract: A method and article of manufacture for building waterproof concrete structures. An integral casing comprised of a rigid plastic shell with an armature attached to its face is covered with concrete. The shell is formed either in the shape of a desired structure or in a generic shape to be used to splice together a larger custom structural shape in a mosaic fashion. The shell acts both as a form to support the wet poured concrete and becomes an integral part of the finished structure to provide waterproofing.