Dewatering Bags / Tubes™ / Socks
Sizes
| Dewatering Sock |
|
| 10" dia x 5' |
SedCatch 10" x 5' Dewatering Sock;
reusable, rope included |
$22.25 |
|
| Dewatering Tube™ |
|
| 1.5' x 15' |
SedCatch 1' 6" x 15' Dewatering Tube;
reusable, rope included for both ends |
$31.95 |
|
| 3' x 15' |
SedCatch 3' x 15' Dewatering Tube;
reusable, rope included for both ends |
$47.25 |
|
| Dewatering Bag |
|
| 6' x 6' |
SedCatch 6' x 6' dewatering bag;
rope included |
$46.68 |
|
| 7' 6" x 10' |
SedCatch 7' 6" x 10' dewatering bag;
rope included |
$83.52 |
|
| 7' 6" x 15' |
SedCatch 7' 6" x 15' Dewatering Bag;
rope included |
$96.60 |
|
| 7' 6" x 20' |
SedCatch 7' 6" x 20' Dewatering Bag
rope included |
$107.25 |
|
| 15' x 15' |
SedCatch 15' x 15' Dewatering Bag;
rope included |
$138.08 |
|
| 15' x 30' |
SedCatch 15' x 30' Dewatering Bag;
rope included |
$278.00 |
|
| 15' x 60' |
SedCatch 15' x 60' Dewatering Bag;
rope included |
$410.40 |
|
| 15' x 100' |
SedCatch 15' x 100' Dewatering Bag;
rope included |
$617.00 |
|
| Custom sizes are available on request and are
comparably priced. |
Choosing the proper dewatering bag
- GPM (gallons per minute) into the bag. Every
pump that is sold gives the gpm of the pump at various head
(the vertical distance) pressures. While the design flow of
the bag is in excess of 100 GPM per sq ft when new, the best
(longest lasting, most economical) sustainable flow rate is
between 10 – 20 gpm. If your job has larger sediment
particles the sustainable flow rates will be on the higher
side, if the sediment has an excess of smaller particles (which
will plug the filter faster) then your number will be on the
lower side.
- Oil Absorbancy. The purpose of a dewatering bag is to collect sediment contained in the water that is being pumped, to prevent scour and erosion from water exiting a pipe at high velocity, to defuse the water over a wider area, minimizing erosion as the water drains away, and to retain oil and hydrocarbons contained within effluent. Use to comply with 40 CFR 122.6 and National Pollutant Discharge Elimination System (NPDES) regulations. The 8 oz. Dewatering bag has the ability to absorb .37 gallons per sq. yd. of material at low flow rates. The 10 oz. Dewatering bag has the ability to absorb .46 gallons per sq. yd. of material at low flow rates.
- Volume of Sediment Collected. Depending upon the
amount of sediment that is expected to be collected, the larger sizes
will be more economical than several smaller bags, subject to disposal
methods.
- Disposal. The bags are impossible to move when
full. If it is not feasible to cut open the bag and scatter
the sediment where it lies, the most cost effective bag size
will often be based upon disposal methods. We manufacture the 7’6” wide
series because many of our customers place the bag on a spare
equipment trailer or truck so they can transport the bag to
a location, either onsite or offsite, before removing the contents.
SedCatch® Dewatering Bags
  
All of our dewatering bags are made with a snout to make the connection
with the discharge hose easier and more secure. A length of rope
is included with each bag.
  
A SedCatch® Dewatering Bag is the
most economical for larger accumulations of sediment.
  
The larger sediment bags will hold 50 to 200 times the sediment of
the smaller tubes. Use the largest bag you can still dump efficiently. Learn
more . . .
SedCatch® Dewatering Tubes™ (Re-usable)
  
A SedCatch® Dewatering Tube™ is the most economical choice
for smaller accumulations of sediment. The patent pending design allows
sediment to be emptied from both ends, with no corners to prevent complete
removal of sediment. If it collects much more than 2” of sediment
consider it a single use product. Learn more . . .
  
  
 
Remove the sediment from the Sediment Tube™ each time you relocate
the pump. Purchase a size that is large enough to handle the sediment
you expect to collect before the need to relocate. If a sediment tube
has to be emptied several times during the same pumping operation, a
larger Sediment Tube™ or Dewatering Bag would be more economical.
  
  
  
Insert the discharge pipe a minimum of 5ft inside the tube and secure
with a rope (included) wrapped 6 times. IMPORTANT To close the open
end, overlap the tube 2ft from the end. Gather the center of the doubled-up
portion forming a bow tie. Secure with a rope (included) wrapped multiple
times.
SedCatch Dewatering Socks
  
A SedCatch® Dewatering Sock works great on smaller pumps. We sell
them in packs of 5. Add $10.00 for a split package fee.
Standard Drawings & Specifications
 
 
FAQ for SedCatch® Dewatering Bags/Tubes ™
Should I put straw under dewatering bags to increase flow rates?
Don’t
bother; it will only help in the initial flow rate. Once the bag has accumulated
a ¼” layer of sediment along the bottom it will be impervious
anyway, and no longer have any effect.
Why are dewatering bags needed?
The purpose of a dewatering bag or dewatering tube is to:
- Collect sediment that is contained in the water that is being pumped
- Prevent scour and erosion from water exiting a pipe at high velocity
- Diffuse the water over a wider area to minimize erosion as the water drains
away
- Retain oil contained within effluent.
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