Geomembrane is a non permiable material, which can hold the rainwater inside of the underground rainwater collection system, so that we can reuse the rainwater.
We generally use 1mm thick geomembrane for the rainwater collection system . The specification is 960g/square meter.
The H.S. Code for the geomembrane is 3920109090.
If you want to know the quantity for your rainwater collection system, please send us an email, we will send you a formula in excel file format, with it , when you input the length, width and height of the underground rainwater pond ,you will get the exact quantity of geomembrane for it.