The present invention relates to a new construction method to build water basin bodies of water that can be used for recreational activities such as surfing, wake boarding, body boarding, water skiing, kayaking, canoeing, river surfing, lazy rivers, tubing rivers, swimming, scuba and other recreational water activities. The present invention construction method can be used in water basins, pools, lagoons, ponds, lakes, surf lakes, surf pools, reservoirs, bodies of water and rivers.

A pool cleaning robot that has a water jet electrohydraulic motorized propulsion/pump unit and a waste-collecting body having a battery for powering the unit, the unit and the battery being contained inside a rotary and sealed turret, external to the body of the robot. The robot advantageously has an automatic direction reversing device having a vane secured to the turret with a first end stop and second end stops.

A swimming pool consisting of a plurality of panels that withstands water pressure in both a concave and convex configuration to create any freeform shape or size. Each panel consists of an adhered wall of skinning of metal or plastic over expanded polystyrene or expanded urethane foam. The density of the foam is adjusted as necessary to increase the strength of the wall based on static loading of water when swimming pool is assembled as a whole and fully filled with water.

A pool cleaning robot that has a water jet electrohydraulic motorized propulsion/pump unit and a waste-collecting body having a battery for powering said unit, the unit and the battery being contained inside a rotary and sealed turret, external to the body of the robot. The robot advantageously has an automatic direction reversing device having a vane secured to the turret with a first end stop and second end stops.

Mounting arrangements for pool skimmers, methods for mounting pool skimmers, pool skimmer adapter plates, and pool skimmer installation kits are provided that provide unique opportunities to overcome the limitations of the prior art. Aspects of the invention include an external adapter plate having an internal cavity sized to receive an inlet of a pool skimmer assembly and an internal adapter plate having an internal cavity positioned to at least partially align with an inlet opening of the inlet of the pool skimmer assembly. The use of the adapter plates allows the pool designer and installer broad latitude in selecting a proper skimmer assembly with minimal if any impact upon the design of the pool wall or panel used. Aspects of the invention are uniquely adapted to panel-type pool construction, but may be adaptable for any pool skimmer installation.

Mounting arrangements for pool skimmers, methods for mounting pool skimmers, pool skimmer adapter plates, and pool skimmer installation kits are provided that provide unique opportunities to overcome the limitations of the prior art. Aspects of the invention include an external adapter plate having an internal cavity sized to receive an inlet of a pool skimmer assembly and an internal adapter plate having an internal cavity positioned to at least partially align with an inlet opening of the inlet of the pool skimmer assembly. The use of the adapter plates allows the pool designer and installer broad latitude in selecting a proper skimmer assembly with minimal if any impact upon the design of the pool wall or panel used. Aspects of the invention are uniquely adapted to panel-type pool construction, but may be adaptable for any pool skimmer installation.