The  “SFIORO-FLEX” patented system makes it possible to build the perimeter water overflow gutter with a perfect fit in relation to the pool shape.

It is made with hot-dip galvanised steel (the walls) and cement (casting the pool bottom) and is covered onsite with a special waterproof membrane single component liquid using a new and powerful formula enabling waterproofness tests to be carried out just two hours after fully hardened. 

The membrane is cement-free, does not require the use of reinforcing fabric, and enables direct bonding on metal, cement, stone and bricks.

The gutter is equipped with water-collecting drains and is fixed to the structural panel of the pool by means of clamps enabling a perfect fit with the overflow profile made with flexible PVC.

“SFIORO-FLEX” is an industrialised system that makes it possible to significantly reduce the time spent installing the pool on site. Furthermore in the event of accidential adjustments, the overflow level can be corrected up to 1 cm even after the pool has been finished.