The HIRSCH Pool system blocks made of EPS enable swimming pool construction without the need for costly boarding, plastering and insulation. Although light as a feather, our double density system blocks have a very high pressure-resistant layer on the inside of the pool and are therefore particularly robust. Under certain conditions, it is possible to fill the system blocks with ready-mixed concrete using a pump up to a pool height of 200 cm. For built-in parts, the EPS system blocks can be easily cut to size with a knife or saw.