In the excavation areas that water is outflowing, especially in areas close to the sea, tank should not be used. Since there is a need to be a concrete floor in the base part, concrete pouring in such areas is difficult. Water will remove the tank at the base and break due to the soil load on it.

Rectangular tanks with a minimum height for these places or products with a large diameter and a minimum height for small tonnage products can be preferred. This reduces the depth size of the excavation depth and prevents water from getting out.

As an example, a standard 10 tons underground tank’s height is 240 cm, tank diameter can be changed as 310 cm and height size changes as 150 cm in this way depth size can be reduced 90 cm.