Nothing renders a drainage system useless faster than geotextile clogging. When the pores of the fabric become blocked with silt or organic matter, the hydraulic conductivity drops, and water has nowhere to go.

Geotextile clogging usually occurs due to two reasons: incorrect specification (using a fabric with too small an aperture for the soil type) or biological growth in stagnant water. To prevent geotextile clogging, it is vital to conduct soil analysis and match the geotextile filtration efficiency to the in-situ soil particles.

At Hzgeotextile, our non-woven fabrics are designed with a complex 3D matrix structure that offers high geotextile flow rate while resisting clogging. We also perform rigorous geotextile clogging test (such as the Gradient Ratio test) to ensure our products maintain their permeability over time.

If you are troubleshooting a failing drainage system, inspecting the geotextile maintenance requirements and potentially replacing the fabric with a higher-performing solution is key. For technical advice on avoiding geotextile, consult our engineering team at http://www.hzgeotextile.com.