Contech DownSpout StormFilter Operation And Maintenance page 2

Maintenance Guidelines
The filter cartridges contained in the DSF
are easily removed and replaced during
maintenance activities according to the
following guidelines:
1. Establish a safe working area as per
typical catch basin service activity.
2. Remove lid.
3. Turn cartridge(s) counter­clockwise to
disconnect from pipe manifold.
4. Remove 4" center cap from cartridge
and replace with lifting cap.
5. Remove cartridge(s) from cartridge
chamber by hand or with vactor truck
boom.
6. Remove accumulated sediment via
vactor truck (min. clearance 13" x 24").
7. Rinse interior of chamber and vactor
remaining water and sediment.
8. Install fresh cartridge(s) threading
clockwise to pipe manifold.
9. Replace lid.
Return original cartridges to
10.
CONTECH Stormwater
Solutions for cleaning and
media disposal.
©2006 CONTECH Stormwater Solutions
contechstormwater.com
Toll­free: 800.548.4667
Single Stage DownSpout StormFilter Operation and Maintenance Guidelines
Media may be removed from the filter
cartridges using the vactor truck before the
cartridges are removed from the catch
basin structure. Empty cartridges can be
easily removed from the catch basin
structure by hand. Empty cartridges should
be reassembled and returned to CONTECH
Stormwater Solutions, as appropriate.
Note: Customer is responsible for
disposing of media in accordance with
applicable regulations.
Materials required include a lifting cap,
vactor truck, and fresh filter cartridges.
Contact CONTECH Stormwater Solutions
for specifications and availability of the
lifting cap. The owner may refresh spent
cartridges. Refreshed cartridges are also
available from CONTECH Stormwater
Solutions on an exchange basis. Contact
the maintenance department of CONTECH
Stormwater Solutions at (800) 548­4667 for
more information.
Maintenance is estimated at 24 minutes of
site time. For units with more than one
cartridge, add approximately 5 minutes for
each additional cartridge. Add travel time
as required.
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