The outside of the blind tube is not to be with the geotextile 1 effect will be better?

The outside of the blind tube is not to be with the geotextile 1 effect will be better?

Plastic blind ditch is a new geosynthetics, is composed of plastic core wrapped outside the filter composition. At present the plastic core has several different cross-sectional shape rectangular, hollow rectangular, circular and hollow circular species structure of the plastic blind ditch products. Pass the water to see the original tie & gt; & gt;