Geotube dewatering units are geo-synthetic containers, made from high tensile woven polypropylene. Essentially a Geotube unit is a large dewatering bag. The special fabric of Geotube units allows for the retention of consolidated valuable nutrients and the dispersal of clear effluent. The Geotube technology has proven it’s effectiveness in providing de-watering and filtration for lagoons, municipal sludge, raw septage as well as a host of other industries around the world since 1982.
Mechanical Properties | Test Method |
Minimum Average (English) |
Minimum Average (Metric) |
Mass/Unit |
ASTM D-5261 |
8.0 oz/yd² |
271 g/m² |
Grab Tensile Strength(MD x CD) |
ASTM D-4632 |
240 x 240 Ibs |
1068 x 1068 N |
Grab Tensile Elongation |
ASTM D-4632 |
70 x 70 % |
70 x 70 % |
Trapezoidal Tear |
ASTM D-4533 |
90 x 90 Ibs |
400 x 400 N |
CBR Puncture |
ASTM D-6241 |
630 Ibs |
2802 N |
Apparent Opening Size(AOS) |
ASTM D-4751 |
80 US Std.Sieve |
0.18 mm |
Permittivity |
ASTM D-4491 |
1.5 sec-1 |
1.5 sec-1 |
Water Flow Rate |
ASTM D-4491 |
95 gal/min/ft² |
3870 L/min/m² |
UV Resistance(% retained after 500 hours) |
ASTM D-4355 |
80 % |
80 % |
Advantages of Geotube® dewatering units:
- High volume containment
- Opportunity to spread project costs over several years
- Rapid flow through rate
- Drastic reduction in disposal cost
- Lower capital cost
- Simplicity
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