Ultratech® Dewatering Bags
Contain silt, sediment & oil pumped out during dewatering operations
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Ultratech® Dewatering Bags - Features
- Detains both oil and sediment/silt, offering a combination of benefits not available in alternative dewatering bags.
- Standard and custom sizes available.
- Accommodates up to 4" discharge hose. Optional hose connector available - makes connecting and disconnecting Dewatering Bags quick and easy.
- Helps comply with NPDES, 40 CFR 122.26 (1999) and TMDL requirements.
NOTE: To increase the efficiency of filtration, place the bag on an aggregate or haybale bed to maximize water flow through the surface area of the bag.
Draining swamps 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.
- Detains both oil and sediment/silt, offering a combination of benefits not available in alternative dewatering bags.
- Standard and custom sizes available.
- Accommodates up to 4" discharge hose. Optional hose connector available - makes connecting and disconnecting Dewatering Bags quick and easy.
- Helps comply with NPDES, 40 CFR 122.26 (1999) and TMDL requirements.
Are we missing the specification you need? Please go to our Contact Us page and submit your question to us, or call 1-877-284-7760
| 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) |
| 9724-OS | 6 x 6 x 0 (1.8 x 1.8 x 0) | 36 (1,019) | 5 (2.3) |
| 9723-OS | 8 x 8 x 0 (2.4 x 2.4 x 0) | 64 (1,812) | 10 (4.54) |
| 9725-OS | 15 x 10 x 0 (4.6 x 3 x 0) | 150 (4,247) | 21 (9.5) |
| 9727-OS | 15 x 15 x 0 (4.6 x 4.6 x 0) | 225 (6,371) | 30 (13.6) |
We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.
To be eligible for a return, your item must be in the same condition that you received it, and in its original packaging. You’ll also need the receipt or proof of purchase.
To start a return, you can fill out the ORDER RETURN FORM HERE. If your return is accepted, we’ll send you the instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.
Damages and issues
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.
Exceptions / non-returnable items
Certain types of items cannot be returned, like custom products (such as special orders or personalized items). Please get in touch if you have questions or concerns about your specific item. Certain Items will Carry restocking fees for us to take back into our stock, This is due to items being made to order or for being an oversized item.
Exchanges
The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.
Refunds
We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method. Please remember it can take some time for your bank or credit card company to process and post the refund too.
Have a question that is not answered here? Please go to our Contact Us page and submit your question to us.
Is there a way to maximize flow through the bag?
The total flow rate through the 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.
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.
What should I do with the bag when it's full or I’m done dewatering?
When the 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.
I need a 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.
How do I secure the 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.
Looking for a quotation ? We would be happy to help by providing a quick response, inventory status, and Volume Level pricing, when available. Please fill out the form below and a representative will be in touch with you within hours to one business day to answer any questions and quote your request.
Product Details
Draining swamps 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.
- Detains both oil and sediment/silt, offering a combination of benefits not available in alternative dewatering bags.
- Standard and custom sizes available.
- Accommodates up to 4" discharge hose. Optional hose connector available - makes connecting and disconnecting Dewatering Bags quick and easy.
- Helps comply with NPDES, 40 CFR 122.26 (1999) and TMDL requirements.
Product Specifications
Are we missing the specification you need? Please go to our Contact Us page and submit your question to us, or call 1-877-284-7760
| 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) |
| 9724-OS | 6 x 6 x 0 (1.8 x 1.8 x 0) | 36 (1,019) | 5 (2.3) |
| 9723-OS | 8 x 8 x 0 (2.4 x 2.4 x 0) | 64 (1,812) | 10 (4.54) |
| 9725-OS | 15 x 10 x 0 (4.6 x 3 x 0) | 150 (4,247) | 21 (9.5) |
| 9727-OS | 15 x 15 x 0 (4.6 x 4.6 x 0) | 225 (6,371) | 30 (13.6) |
Product Manuals
Frequently Asked Questions
Have a question that is not answered here? Please go to our Contact Us page and submit your question to us.
Is there a way to maximize flow through the bag?
The total flow rate through the 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.
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.
What should I do with the bag when it's full or I’m done dewatering?
When the 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.
I need a 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.
How do I secure the 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.
Videos
We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.
To be eligible for a return, your item must be in the same condition that you received it, and in its original packaging. You’ll also need the receipt or proof of purchase.
To start a return, you can fill out the ORDER RETURN FORM HERE. If your return is accepted, we’ll send you the instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.
Damages and issues
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.
Exceptions / non-returnable items
Certain types of items cannot be returned, like custom products (such as special orders or personalized items). Please get in touch if you have questions or concerns about your specific item. Certain Items will Carry restocking fees for us to take back into our stock, This is due to items being made to order or for being an oversized item.
Exchanges
The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.
Refunds
We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method. Please remember it can take some time for your bank or credit card company to process and post the refund too.
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