Design of a 15cm outdoor swimming pool

Quick answer：

The design of a 15cm outdoor swimming pool is an unusual request, as standard swimming pools are significantly larger. A 15cm pool would be impractical for swimming but could be designed for decorative or other non-standard purposes. Factors to consider include materials, structural integrity, and water management. It is essential to ensure proper drainage and water conservation measures. For a practical swimming pool, a minimum size of around 4 meters x 2 meters is recommended.