Here a brief summary of our step-by-step installation of TenCate Geotube® containers.
Step 1: Grade the site to remove any debris or sharp objects. (It is important to avoid puncturing the impermeable membrane or the TenCate Geotube® unit.) Be sure to level site from side to side, with no more than a 0.5% grade from end to end.
Step 2: Construct a containment berm 1/3 to 2/3 the height of the TenCate Geotube® unit around the perimeter.
Step 3: Dig trench inside containment berm, sloped for positive drainage to lower end of cell.
Step 4: Place impermeable membrane over the entire dewatering cell including the interior trench and the perimeter berm.
Step 5: Place drainage media (such as free-draining granular material or drainage net) over the entire site, except for the interior trench and containment berm.
Step 6: Unroll TenCate Geotube® unit over the drainage media on the upper end of the dewatering cell. Align unit using the handling straps.
Step 7: Install an inline mixing manifold system which includes an injection port, 90-degree elbows for mixing, and a sample port. Pump sludge through the return line as a final floc check before pumping into the TenCate Geotube® unit.
Step 8: Connect a flexible line to the filling port. Pinch valves are the preferred method to control the waste stream.
Step 9: The circumference of the TenCate Geotube® unit determines the design pump height. DO NOT exceed the design fill height.
Step 10: The TenCate Geotube® unit can be filled multiple times during the dewatering process. [Note: In colder climates, the freeze-thaw cycle improves dewatering efficiency.]
Step 11: Simply cut open the container and remove the solid material.