Attenuation Tank Liners
Our Process
Step 1
Step 1

Geosynthetic Technology can provide prefabricated Geombrane liners to waterproof your attenuation tank; either flat sheet panels or box-welded liners on a supply only or a supply and installation basis.  Protective Geotextiles are also available as an outer wrapping to prevent damage to the liner during the subsequent backfilling operation.

Step 2
Step 2

Once the excavation for the tank has been dug to the site specification, the protection Geotextile (if required) and Geomembrane for the base and sides are unfolded in the bottom of the excavation.

Step 3
Step 3

The attenuation tank crates/blocks are then placed to the predeterimined laying pattern, before holes for inlet, outlet and vent pipes are cut to size.  All penetrations are sealed to ensure one-hundred-percent waterproofing integrity, using stainless-steel bands or special components provided by the crate/block Manufacturer.

Step 4
Step 4

The protective Geotextile and Geomembrane for the base and sides are then pulled up the sides of the tank with a turnover onto the top of the tank, following which the Geomembrane lid and protective Geotextile are placed and sealed in position, using tape jointing (supply only) or welding (supply and installation).

Step 5
Step 5

Pipework from the tank can then be connected to the upstream or downstream manholes/hydrobrakes etc, prior to backfilling to site specification being undertaken.

Attenuation tanks are often used in SUDS (Sustainable Urban Drainage Systems) to manage extreme rainfall events in urban areas or in areas where large amounts of non-porous material stops natural water runoff into grass, soil and waterways.  An Attenuation tank temporarily stores this excess run-off water, returning it to the normal drainage system in a controlled manner.  Attenuation tanks can help to reduce, or even eliminate flooding, erosion, and damage caused by flooding during extreme rainfall situations.

An Attenuation tank lined with the correct Geotextile and Geomembrane provided by Geosynthetic Technology Limited will ensure that stored water does not escape from the system and cause flooding or damage to nearby land. Geosynthetic Technology Limited can fabricate and install a Geomembrane and Geotextile liner to the exact specifications of your tank and provide you with a bona fide Warranty for your Attenuation tank liner.

Geosynthetic Technology Limited has more than 40-years experience in the design and fabrication of Geomembrane and Geotextile liners for a multitude of projects including attenuation tank liners. Providing the highest level of service within the Geosynethics Industry, Geosynthetic Technology Limited has completed Geotextile and Geomembrane lining projects in over 35 countries across 5 continents. We would welcome the opportunity to provide technical assistance and pricing information to help design and install your Geotextile and Geomembrane liners.  Please do not hesitate to contact us regarding your project.

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