Structural stability

The outer surface is configured to a wave shape by connecting a cylindrical tank.

A rectangular water tank installed inside the basement of a building

Structurally, like a cylinder type, it is strong against hydrostatic pressure and has good pressure resistance with movement dispersion.

Since there is no inner reinforcement, it is convenient for cleaning and water tank management.

A single tank can be used for emergency and firefighting water by storing water in two or three tanks.

Storage capacity (S-shaped mixing flow having no stagnant area)

As the rotational water flow storage method, there is no stagnation in the S-shaped flow for each tank, and it flows down except for effective water.

Realization of a common-sense mathematical movement in which water that comes in first flows out first

Stagnant water is prevented by mixing flow in each tank, and the sterilization ability is great by improving CT value.

It is a rotational water-jet that increases the average flow rate and reduces stay time since there is no water conduction wall.

Economic feasibility (wave tank installed underground of a building like a square one)

Wave tank without panel assembly, epoxy coating and internal reinforcement

Simple construction, shortened construction period and reduced cost with STS444 unit connection structure

Easy to handle sediment when cleaning with its flat floor and rotational water-jet

In the case of a water reservoir of the same capacity, site saving effect compared to the full type of two tanks