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The UltraTech 9729-OS Dewatering Bag Oil & Sediment Model is a compact stormwater filtration device designed to capture silt, sediment, dirt, sand, and hydrocarbons from water discharged during dewatering operations. Constructed from nonwoven polyethylene geotextile fabric, it combines sediment filtration and oil absorption in a single unit while allowing filtered water to pass through. The 3' x 4' configuration is suited for small-scale dewatering projects where both sediment and oil control are required.
- Oil and Sediment Filtration – Captures hydrocarbons, oil, sediment, silt, dirt, and sand from pumped discharge water before release
- Compact 3' x 4' Design – Provides up to 12 cubic feet of sediment containment capacity while maintaining a small installation footprint
- Compatible with 4" Discharge Hoses – Designed to accept discharge hoses up to 4" in diameter and can be used with the optional UltraTech Hose Connector (Part #9739)
- Nonwoven Geotextile Construction – Manufactured from durable geotextile fabric with high filtration efficiency and reinforced sewn seams for field use
- Stormwater Compliance Support – Helps support compliance with NPDES 40 CFR 122.26 (1999) and TMDL requirements when used as part of a stormwater management program
Product Specifications:
| Model Number | 9729-OS |
| Product Type | Ultra-Dewatering Bag® Oil & Sediment Model |
| Dimensions | 3' W x 4' L (914 x 1,219 mm) |
| Sediment Capacity | 12 cu. ft. (340 L) |
| Sediment Capture Capacity | 720 lbs. (327 kg) |
| Oil Capture Capacity | 1.2 Gallons (4.5 L) |
| Maximum Flow Rate | 500 GPM |
| Filtration Rating | 180 Microns |
| Compatible Hose Size | Up to 4" (102 mm) Diameter Discharge Hose |
| Material | Nonwoven Polyethylene Geotextile Fabric |
| Filter Efficiency | 99.0% |
| Construction | Double-Needle Sewn with High-Strength Nylon Thread |
| Substances Filtered | Oil, Hydrocarbons, Sediment, Silt, Dirt, Sand, and Debris |
| Color | Black |
| Package Quantity | 1 Each |
| Weight | 2 lbs. (1.0 kg) |
| Optional Accessory | Part #9739 Hose Connector |
| Compliance | NPDES 40 CFR 122.26 (1999), TMDL Requirements |
| UPC | 808416097283 |
| Country of Origin | Guatemala |
| Brand | UltraTech International |