FlowTex Dewatering Bags and Tubes
Our FlowTex bags and tubes separate solids from suitable slurries while allowing water to pass through the fabric. We manufacture and supply the containers and support their installation and operation for dredging, treatment and industrial dewatering.


Specify dewatering performance around the slurry
Geotextile dewatering containers retain solids while water passes through the fabric. Fabric permeability alone does not establish achievable pumping rate, filtrate quality or the time needed to reach the required cake solids.
Fabric selection and custom fabrication
FlowTex™ bags and tubes are available in specified fabric and fabricated configurations. Monofilament and slit-film constructions have different properties; suitability depends on the actual slurry, required retention, loading and test results.
| Enquiry detail | Why it matters |
|---|---|
| Slurry and solids volume | Supports container sizing and the filling programme. |
| Fabric and seam requirements | Defines filtration and structural acceptance criteria. |
| Filling connections and limits | Coordinates the pump interface and safe operation. |
| Filtrate management | Defines drainage, collection and any further treatment. |
State the required finished dimensions, inlet details, quantity and destination when requesting a fabricated system.
Applications and uses
We supply and install this product for:
- Dewatering of suitable sludges and sediment from dredging and water-treatment activities.
- Mining and industrial solids-liquid separation following material-specific trials.
Why choose FlowTex Dewatering Bags and Tubes?
- Fabricated solids-retention containers
- Bag and tube configurations
- Manufacture, delivery and installation support
Installation and technical guidance
Design and procurement inputs
Define slurry properties, solids content, pumping duty, fabric retention and seam capacity. Test filtrate quality and any polymer-conditioning requirement; provide a contained, drained operating platform.
Provide the product grade or performance specification, drawings or BOQ, quantities, site location and required date. We will define supply, delivery and any agreed installation and QA/QC responsibilities in the quotation.
Request a product-specific quotation →Installation and QA/QC
Retain material and fabrication records, inspect deployment and connections, and agree operating inspections and acceptance criteria.
Use the current supplied-product procedure and the approved project inspection plan. Define responsibilities and acceptance criteria before installation.
Selection inputs
- Slurry source, particle-size distribution and solids concentration.
- Required filtrate quality and the proposed collection or treatment route.
- Bench or bag testing, including conditioning where appropriate.
- Container dimensions, seam strength and approved filling limits.
- Platform drainage, support, access and final cake handling.
Use a representative sample to assess filtration and conditioning requirements. Confirm the proposed fabric and container arrangement against the test results and project acceptance criteria.
SELECTION · SPECIFICATION · PROJECT SUPPLY
Choose the right specification
Choose the system around the solids, water conditions, containment duty and available working space.
- For dewatering, provide slurry characteristics, flow and required filtrate quality; representative trials may be needed.
- For curtains or containment articles, define flow, depth, exposure, geometry and anchorage or filling conditions.
- Confirm fabric, dimensions, seams, connections, handling and operating limits for the actual system.
Define the quality records
Retain material and fabrication records, inspect deployment and connections, and agree operating inspections and acceptance criteria.
For a useful quotation: send the grade or performance specification, quantity, location, required date and scope. Availability, delivery and installation responsibilities are confirmed in the quotation.
Why Geosynthetics South Africa
One enquiry coordinates the specified product, technical submission, delivery and any agreed installation and QA/QC scope. We define quantities, programme, responsibilities and handover requirements against your project.


