Important notes: This pool is not suitable for building into the ground. Assembly is easiest with two people. Approximate assembly time, depending on the equipment option and size, is from 45 minutes (without preparation work for sub-construction or filling). Watertightness/Class: W0. EN 16582-1 / EN 16582-3. Pool assembly requires an appropriately prepared setup site. This must be absolutely flat and even. The sub-surface must be solid enough to accommodate the weight of a filled pool regardless of the weather. In addition, escaping pool water must be able to flow off easily without causing any damage. Not winterproof.