Contain silt and sediment pumped out during dewatering operations
Draining swampy or low-lying areas is a common occurrence in construction. Unfortunately, pumping out the water from these areas also removes a lot of dirt, silt, mud, and debris along with the water. These contaminants can cause problems if they are simply discharged into a storm drain.
The Ultra-Dewatering Bag provides an economical and effective solution. By pumping water into the bag, silt, dirt, sand and other pollutants are trapped and filtered so only water escapes to the ground below or nearby storm drains.
NOTE: To increase the efficiency of filtration, the bag can be placed on an aggregate or haybale bed to maximize water flow through the surface area of the bag.
Product Highlights
- Standard and custom sizes available.
- Accommodates up to 4-inch discharge hose.
- Optional hose connector available - makes connecting and disconnecting Ultra-Dewatering Bags quick and easy.
- Material: 8 oz. Non Woven
| Part # | Dimensions ft. (m) | Capacity cu. ft. (L) | Weight lbs. (kg) |
|---|---|---|---|
| 9729-OS | 4 x 3 x 0 (1.2 x .9 x 0) | 12 (340) | 2 (.9) |
| 9720-OS | 6 x 4 x 0 (1.8 x 1.2 x 0) | 24 (680) | 4 (1.81) |
| 9724-OS | 6 x 6 x 0 (1.8 x 1.8 x 0) | 36 (1,019) | 5 (2.3) |
| 9721-OS | 9 x 6 x 0 (2.7 x 1.8 x 0) | 54 (1529) | 5 (2.27) |
| 9723-OS | 8 x 8 x 0 (2.4 x 2.4 x 0) | 64 (1,812) | 7 (3.18) |
| 9725-OS | 15 x 10 x 0 (4.6 x 3 x 0) | 150 (4,247) | 17 (7.11) |
| 9727-OS | 15 x 15 x 0 (4.6 x 4.6 x 0) | 225 (6,371) | 26 (11.79) |
Swipe to scroll table
| Part # | Model | Product Image | Weight lbs. (kg) |
|---|---|---|---|
| 9739 | Hose Connector |  | 2.5 (1.1) |
Swipe to scroll table
Custom sizes available. Minimum order required. Contact us for details.
FAQs
Resources & Docs
Compliance & Regs
Additional Info.
FAQs
Frequently Asked Questions
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Is there a way to maximize flow through the bag?
The total flow rate through the Ultra-Dewatering Bag can be maximized by getting it off the ground. While water will flow through a dewatering bag laying flat on the ground, it will be impeded by the solid/saturated soil it is on. By placing the bag on large aggregate or on hay bales, the water will be less restricted as it flows through the bottom layer of geotextile fabric.
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What is the flow rate?
The maximum flow rate of the Ultra-Dewatering Bags, when new, is 500 gallons/min. For more information, check out our specifications.
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What should I do with the bag when it's full or I’m done dewatering?
When the Ultra-Dewatering Bag is full, it should be disposed of as directed by the site engineer and in accordance with any local regulations and requirements. Often times, it can simply be cut open and the contents dispersed.
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I need an Ultra-Dewatering Bag in a size that is not listed. Can you make that for me?
Yes, we can do custom sizes (and shapes). Please contact us for a quote.
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How do I secure the Ultra-Dewatering Bag to the discharge hose?
If your flow rate is not too high, you can use the attached straps to tie off the bag to the hose. If water is being discharged at a higher flow rate, a hose clamp may be required (not included). You can also use our optional hose connector (Part# 9739) to make the connection quick and easy.
Resources & Docs
More Info / Downloads
DOT Approvals
- Misssissippi Dept. of Transportation
Compliance & Regs
Helps Comply with These Rules & Regulations
- Stormwater Management Regulation 40 CFR 122.26
Additional Info.
Additional Product Information
Uniform Product Codes (UPCs)
- UPC 808416097283 Ultra-Dewatering Bag Oil & Sediment Model (Part #9729-OS)
- UPC 808416102277 Ultra-Dewatering Bag® Oil & Sediment Model (Part #9720-OS)
- UPC 808416097269 Ultra-Dewatering Bag Oil & Sediment Model (Part #9724-OS)
- UPC 808416102284 Ultra-Dewatering Bag® Oil & Sediment Model (Part #9721-OS)
- UPC 808416097238 Ultra-Dewatering Bag Oil & Sediment Model (Part #9723-OS)
- UPC 808416097252 Ultra-Dewatering Bag Oil & Sediment Model (Part #9725-OS)
- UPC 808416005615 Ultra-Dewatering Bag Oil & Sediment Model (Part #9727-OS)
- UPC 808416097399 Ultra- Dewatering Bag Hose Connector (Part #9739)
