• Dewatering bag filtering sediment-laden water as clean water drains through the geotextile fabric during construction site dewatering.
  • Dewatering bag filtering sediment-laden water as clean water drains through the geotextile fabric during construction site dewatering.
  • Dewatering bag filtering sediment-laden water as clean water drains through the geotextile fabric during construction site dewatering.

Dewatering Bags

Key Specs

  • Overall Height: 50 in.
  • Length: 50 ft., Custom Lengths Available
  • Mesh Permeable Skirt
  • Hardware: Stainless Steel
  • Anchor Point: 25 ft. On Center
  • Color Options: Blue Standard (Green, Black, Yellow, and Orange Available by Request)

Overview

Dewatering Bags and Socks provide a simple, cost-effective solution for removing sediment and silt from discharged water on construction sites, dredging projects, municipalities, and industrial facilities. Manufactured from durable, needle-punched, non-woven standard or heavy-duty geotextile fabric, they allow water to pass through while capturing fine soils and sediment for cleaner discharge.

SPECIFICATIONS

Specification Standard (8 oz.) Heavy Duty (10 oz.)
Fabric Material 8 oz. Non-Woven 10 oz. Non-Woven
Filter Rate 90 gpm 75 gpm
Microns 177 149
AOS 80 US Sieve 100 US Sieve
Size Options 6 ft. x 6 ft. | 10 ft. x 15 ft. | 15 ft. x 15 ft. | 15 ft. x 20 ft. | 15 ft. x 25 ft.
Capacity Options 1.44 yds³ | 6 yds³ | 9.6 yds³ | 12 yds³ | 15 yds³

A dewatering bag is a geotextile filtration bag used to separate sediment, silt, soil, and other suspended solids from pumped water. Also called a sediment filter bag, silt bag, or dewatering filter bag, it allows filtered water to pass through the geotextile fabric while retaining sediment inside the bag.

A dewatering bag connects to a pump discharge hose so sediment-laden water flows directly into the bag. The needle-punched, non-woven geotextile fabric captures sediment and suspended particles while allowing filtered water to pass through the material and discharge from the bag.

Dewatering bags are used for construction site dewatering, trench pumping, dredging, sediment removal, pond and lake maintenance, stormwater management, municipal operations, industrial facilities, and contaminated sediment removal. They provide a relatively simple and economical method of filtering sediment from pumped water.

Selecting the right dewatering bag depends on several factors, including pump flow rate, quantity and type of sediment, fabric permittivity, volume of material requiring containment, available installation area, and discharge conditions. The amount and composition of sediment can significantly affect both filtration performance and the time required to dewater.