| 摘要 |
The swimming pool has a pit (3) equipped with a platform that has shape and dimension corresponding to shape and dimension of the pit. The platform is equipped with a ballast system for being filled with air. A base (30) of the pit has an inclined wall (31) that converges edges towards center, where the wall has a pressurized water projection nozzle (34). The base has a shape shrinkable towards bottom and center for reaching a sump (32) equipped with suction and evacuation units (33). |
