SWIMMING POOL Russian patent published in 2010 - IPC E04H4/16 

FIELD: construction.

SUBSTANCE: swimming pool includes tight body frame and launder located along its perimetre and used as water filtration system. Front wall of launder is made below the level of its rear wall and formed with profile with four flanges in cross section. Lower and upper flanges are located horizontally. The space between them is tightly filled with porous filtering material with through pores of small size. Two inclined flanges comprise a longitudinal wedge with the top facing the pool reservoir. Front wall of launder is equipped with a flexible overflow mat directed inside it and floating on water surface. Covers of launder have partitions with wedged parts directed downwards, on edge surfaces of which metal wires of primary and secondary water filtration are installed. Profile is installed on the launder bottom with drain gap formed with planks laid along its perimetre in transverse direction and covered with waterproof elastic gasket, e.g. from thin polyvinyl chloride film and pressed from above with porous filtering material with low fluid resistance, laid tightly between wall of the catch pit and filtering material located between the profile flanges, and covered with absorbent carbon layer. Internal cavity of the space between inclined profile flanges is connected to suction connection pipe at lest of one submerged-type electric pump installed on lower inclined flange.

EFFECT: invention allows water self-purification of rivers and water reservoirs.

2 dwg