Dewatering Bags Stock & Custom Sizes Polyester, Polypropylene & Non Woven

Dewatering bags are heavy-duty, porous filter bags made of geotextile fabric. They attach to the end of a pump discharge hose to trap silt, sand, mud, and debris while letting clean water filter out safely. They prevent environmental contamination and soil erosion during construction or trench pumping.

How They Work

  • Connection: A pump hose fits directly into the sleeve or neck of the bag and is secured with straps.
  • Filtration: As muddy water pumps inside, the geotextile material acts like a giant, high-strength filter.
  • Release: Solid particles and sludge stay trapped inside, while clean, filtered water drains out through the tiny pores

 

Common Uses

  • Construction sites: Draining flooded trenches, foundations, or low-lying work areas.
  • Municipal projects: Handling water flow during water main breaks or utility repairs.
  • Environmental care: Meeting local stormwater rules to keep dirt and oil out of storm drains.

SpinPro can help you with:

  • Sizing guidelines for specific pump flow rates
  • Placement tips to maximize drainage efficiency
  • Disposal rules for filled sediment bags

Hanging Bags

Hanging bags are approximately 3 feet x 3 feet or 1 meter x 1 meter with the sides and bottom sewn shut leaving the top open. The purpose of the hanging bag is for testing the de-watering performance of the bag by suspending it 3-5 feet from the ground and pouring the sludge slurry into the opening in the top of the bag. This process allows the Customer to match up the type and amount of pre treatment (if any) required as well as optimum material of composition for the bag.

SPINPRO

Hanging test bag

Hanging Bag

Cubic Yard - Meter Bags

Cubic Yard Dewatering bags are made with 4 sides measuring 1 yard x 1 yard sewn together to make the sides and a 1 yard x 1 yard sewn in for the bottom and the top so you basically have 6 1 yard x 1 yard pieces sewn into a cube. A fill port or flange is installed in the top of the bag and the product is pumped in to the bag to dewater the product and filter the liquids..

SPINPRO

Cubic Meter Bag

Small Square Dewatering Bag With A Fill Port

Roll Off Dumpster Bags

Roll – Off Tubes or Dumpster Bags are typically 15 foot circumference to 21.5 foot circumference x 20 feet long. They are designed to fit in existing containers that also act as a containment to capture the liberated liquids from the product pumped into the Roll Off Bag.

SPINPRO

Dumpster Dewatering Bag

Dewatering Bag for Roll Off