cfm - Wisconsin supplier of Erosion Control Products, Straw Blankets, Geotextiles, Silt Fence, Drain Tile, Polymer, Silt Sock,Gabions,  and more!
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Dewatering Bag

Dewatering or Filter bags are used to collect silt, sediment and debris from dewatering operations

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cfm dewatering bags are manufactured from 16 oz. non-woven needle-punched geotextile filter fabric with double-stitched seams. (AOS of 100 U.S. sieve and 50 gpm/ ft2).  Bags can also be made using 8 oz. and 12 oz. non-woven fabrics. 



To maximize performance of the bag, it should be placed on a level area.  Insert the hose and clamp the fabric to the hose using wire, ties or clamps to create a seal.


Standard sizes:

10’x15’ for 2” discharge hose

20’x15’ for 3” discharge hose

25’x15’ for 4” discharge hose

35’x15’ for 6” discharge hose



Other custom sizes available, just ask!




Please note: cfm dewatering bags are sturdy and permeable, but not indestructible.  High pumping rates or high concentrations of sediment can cause the bag to burst.
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