Dewatering Bags
Heavy-Duty Sediment Control for Construction & Stormwater
Looking for a reliable way to manage sediment runoff and comply with environmental regulations? Our Dewatering Bags, also known as sediment bags, are the go-to solution for filtering silt, debris, and sediment from water discharge on construction sites, stormwater management areas, dredging zones, and landscaping projects. Easy to use, highly durable, and eco-friendly, our dewatering filter bags are built to perform in the toughest conditions.
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What Are Dewatering Bags?
A dewatering bag is a high-strength sediment filter bag designed to capture solids while allowing clean water to flow out. These bags are placed at pump discharge points, capturing sediment-laden water and preventing harmful runoff into storm drains, rivers, and lakes. Our filter bags for dewatering are crafted from rugged geotextile fabric, meeting key environmental compliance standards including NPDES Phase II.
Key Features & Benefits
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Choosing the Right Dewatering Filter Bag
Selecting the best dewatering filter bag for your project depends on several factors:
- Pump flow rate
- Quantity and type of sediment
- Permittivity of the filter fabric
- Total volume of material needing containment
- Available space at the deployment site
Keep in mind: areas with steep slopes are not ideal for using sediment bags, as filled bags can shift or roll. Always avoid overfilling to prevent bag seam failures and pump damage.
Dewatering Bag Sizes & Specifications
Our standard dewatering bag product line includes:
- 5' x 6'
- 7.5' x 7.5'
- 7.5' x 15'
- 12' x 12'
- 15' x 15'
- 15' x 30'
These sediment-only filter bags are crafted from premium 10 oz geotextile fabric and designed for a wide range of site uses:
- Construction sites
- Excavation and trenching
- Dredging operations
- Stormwater outfall areas
- Drop boxes, dump trucks, containment vehicles
For additional sizing and specialty options, download our Dewatering Bag Product Line Card (pdf).
Dewatering Bag Specifications
| Grab Tensile Strength | ASTM D-4632 | 270 lbs |
| Grab Elongation | ASTM D-4632 | 50 % |
| Trapezoid Tear | ASTM D-4533 | 100 lbs |
| Puncture | ASTM D-4833 | 150 lbs |
| Mullen Burst | ASTM D-3786 | 450 psi |
| Permittivity | ASTM D-4491 | .7 sec |
| Permeability | ASTM D-4491 | .25 cm/sec |
| A.O.S. | ASTM D-4751 | 100 US Sieve |
| Water Flow | ASTM D-4491 | 55 gpm/ft2 |
| U.V. Resistance (500 hr) | ASTM D-4355 | 70 % |
| Weight (oz/sq yd) | ASTM D-5261 | 10 oz |
Dewatering Bag Downloads
How to Install & Use Dewatering Bags
Proper setup ensures maximum filtration and performance from your dewatering bags:
Step 1: Select Placement Site
Choose a stable area like a drop box, truck bed, or flat ground with a protective ground cloth underneath. This prevents punctures from sharp debris.
Step 2: Attach Hose to Bag
Insert the pump discharge hose (up to 6") and secure it tightly with wire ties or heavy-duty straps to prevent leaks.
Step 3: Begin Pumping
Pump sediment-laden water into the bag. The geotextile fabric allows water to pass through while trapping silt and sediment inside. Monitor bag filling to avoid overfilling.
For personalized recommendations, complete our short dewatering questionnaire so we can match the best product to your project needs.
Dewatering Bag Frequently Asked Questions
Our standard dewatering filter bags have a grab tensile strength of 270 lbs, offering rugged durability for demanding applications.
The main difference is size and application. Dewatering bags are compact and ideal for standard construction and sediment control jobs. Dewatering tubes are much larger, designed for industrial-scale projects such as wastewater treatment or large-scale sludge dewatering.
