The siphon drainage collection system is designed with the principles of cost-effective investment, low operational expenses, and minimal land area.

Select appropriate specifications of long-lasting drainage boards, reservoirs, etc., based on requirements such as the infiltration and irrigation water volume of the underground parking garage roof, the thickness of the soil cover, the spacing of drainage channels, and the volume of the reservoir.

The drainage layer materials must comply with the relevant provisions of the "Technical Code for Engineering of Greenhouse Roofing" JGJ155. In areas where the annual precipitation is less than the evaporation rate, the drainage layer should be combined with the drainage channel zones for partitioned setting.

The Siphon Drainage Collection System involves concealed underground installation and rainwater collection for reuse. All components of the system do not generate pollution or secondary pollution sources, thereby not contaminating the environment.

The siphon drainage collection system equipment should operate stably and reliably, be easy to maintain, and convenient to operate.