Geotextile Dewatering Tubes

USA Made Silt Sock Sludge Tubes

geotextile dewatering tubeGeotextile Dewatering Tubes (also known as sludge tubes, geo-tubes, or dewatering tubes) are ideal for large dewatering or sludge removal projects. Geotextile tubes are designed with significantly larger dimensions and higher strength nonwoven geotextile fabric than traditional Dewatering Bags. This design allows large amounts of sludge and silt to be easily removed without having to constantly change or replace bags.

Due to their high strength and large capacity, dewatering tubes are used extensively in Wastewater Treatment Projects (WWTP's), agricultural ponds, aquaculture facilities, pulp and paper mills, and industrial lagoons. Geotubes can be custom made to your required location and surface area.

Questions? We can help! Call our team at 1-772-646-0597 or fill out our quote request form to discuss your requirements.

geotextile tubeLearn more about these geo-tubes

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Sludge Tubes Technical Specifications

Product Flyer
Extra Notes


Other Lengths by Special Order
Width (laying flat)
7.5', 12', 22.5'
30', 37.5', 45'
15', 30', 45'
60', 75', 90'
Filling Port Spacing
1, 2, or 3 ports
Equally Spaced Dependent on
Tube Length and Volume
Bracing Loop
Every 20' OC

Size and Estimated Capacity per Tube

Tube Height (ft.)
Tube Volume (cy/ft.)

Material Specification

UV Stable
Weight/Unit Area
Woven Geotextile
16.6 (560)
Woven Geotextile
17.7 (600)
Woven Geotextile
24 (810)

Questions? We can help! Call our team at 1-772-646-0597 or fill out our quote request form to discuss your requirements.

High Efficiency Sludge & Dewatering Tubes

Sludge /sediment geotextile dewatering tubes are normally filled to 85% with slurry mix capacity and geotextile dewatering tubethen allowed to consolidate. Once consolidation has taken place, the dewatering tubes are then refilled, and the cycle continues until consolidated solids reaches 85% of the geotextile tube's total capacity.

In order to achieve the best volume reduction, geotextile dewatering tubes should be left in place to dewater over extended periods of the time. Reduction rates often vary from site to site and depend on the slurry, organics, and conditions of your particular location. After your sludge or sediment removal process is done, consolidated materials can be transported to an off-site location for disposal or use as fill or compost.

Geotextile Tube Benefits:

  • Requires Minimal Equipment
  • Cost Effective
  • Simple Design & Operation
  • Can Run 24/7 with Minimal Labor

Things To Consider When Using Geotextile Tubes

  • Slurry / Sludge solids content
  • Placement of inlets for distribution of sludge / solids in each tubegeo-tube
  • Drainage of clear, free-flowing filtrate from each tube to retention area or reservoir
  • Tube height should not exceed 5' and inflation rates of multiple tubes applications
  • Stability of additional layers of tubes (if filling a second layer tube)
  • Safe location tubes with respect to potential hazards and area

This technology is often the most cost effective option for treating a specific sludge / slurry stream. Simple soil analysis in conjunction with hanging bag tests can determine the correct fabric and pore size to safely deploy the Dewatering Tube in an environmentally responsible manner. Overall geotextile tube performance will also be influenced by factors such as the percent of water content in the media, the size of the particles, the shrinkage when dry, and soil composition. *** Disclaimer ***

Additional Dewatering Geo-Tube Considerations

geotubesPolymers: Depending on the media, pump rates, and site limitations, you may consider using polymers to improve flocculation and dewatering times. Polymers can help you achieve the highest level of efficiency with your geotubes and dewatering bags. Talk to our product specialists about polymers to help make the most of your dewatering sludge tubes.

  • All necessary dredging, pumping, and piping systems must be evaluated. The sludge / slurry flow to the tubes must be controlled through a series of manifolds and valves.
  • Consider contacting a polymer specialist to treat the sludge and also the necessary management and labor to establish/maintain a sludge tube dewatering process.

The correct use of Polymer can reduce total time and provide huge savings on a geotextile dewatering tube system but must be carefully monitored during the tube filling operation. Periodic beaker tests should be done to ensure peak performance and TSS thresholds are achieved.

Other Dewatering & Filtering Geotextile Options

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Other Filtering Devices

Read our blog post: Dewatering Products Can Keep Your Project Free of Costly Fines.

View a customer question about using Dewatering Bags to Remove 1000 Cubic Yards of Sediment from their site, or this customer who needed Dewatering Tubes to Dredge Aluminum Sludge.

Questions? We can help! Call our team at 1-772-646-0597 or fill out our quote request form to discuss your requirements.