A soft drainage pipe is a new type of material with reverse filtration and drainage functions, overcoming many drawbacks of other drainage pipes. It utilizes the "capillary" phenomenon and "siphon" principle, integrating water absorption, permeation, and drainage into one, and possesses the pressure resistance, permeability, and reverse filtration required for engineering design.

Not prone to cracking due to geological or geographical temperature changes, it achieves the effect of discharging clean water, does not cause secondary pollution to the environment, and is a new type of environmentally friendly product. Its installation is simple, with no joints required, and has no special requirements for geology or terrain, making it versatile for any location needing concealed drainage.

The drainage pipe is supported by a rust-proof spring ring, forming a high-compression soft structure. The non-woven fabric lining filters out silt and impurities, preventing them from entering the pipe, thereby achieving the function of clean percolation. The polyester fiber outer wrapping has excellent water absorption properties, quickly collecting excess moisture in the soil. The rubber strips make the covering layer of the pipe wall and the spring steel ring body an organic whole, providing excellent drainage functionality. Water permeates smoothly into the pipe, while silt and impurities are blocked outside, achieving the purpose of water permeation, filtration, and drainage.