Abstract: A basin for swimming pools, artificial ponds and the like, includes, within the bed excavated in the ground for its provision, a layer for protecting the internal surface of the bed, a first waterproofing layer, above the protective layer, an internally hollow structure, which is placed on the first waterproofing layer and whose inner face, directed toward the inside of the basin, is contoured or vertical, in order to provide a correspondingly shaped or substantially vertical wall of the central tank of the basin, a protective layer and a waterproofing layer for the outer face of the hollow structure, and a second waterproofing layer for the inner face of the hollow structure.

Abstract: A basin for swimming pools, artificial ponds and the like, comprising, within the bed excavated in the ground for its provision, a layer for protecting the internal surface of the bed, a first waterproofing layer, above the protective layer, an internally hollow structure, which is placed on the first waterproofing layer and whose inner face, directed toward the inside of the basin, is contoured or vertical, in order to provide a correspondingly shaped or substantially vertical wall of the central tank of the basin, a protective layer and a waterproofing layer for the outer face of the hollow structure, and a second waterproofing layer for the inner face of the hollow structure.