Up-Flo
®
Filter Operation and Maintenance Manual
Hydro International
(Stormwater), 94 Hutchins Drive, Portland ME 04102
Tel: (207) 756-6200 Fax: (207) 756-6212 Web: www.hydro-int.com
Routine Inspection
Inspection is a simple process that requires monitoring pollutant
accumulations. Maintenance crews should be familiar with the
Up-Flo
®
Filter and its components prior to inspection.
Scheduling
•
Inspection may be conducted during any season of the year
but should occur shortly after a predicted rainfall to ensure
components are operating properly.
Recommended Equipment
•
Safety Equipment and Personal Protective Equipment (traffic
cones, work gloves, etc.)
•
Scale to measure the weight of the Media Bags
•
Crow bar to remove grate or lid
•
Pole with skimmer or net
•
Sediment probe (such as a Sludge-Judge
®
)
•
Hydro International Up-Flo
®
Filter Maintenance Log
•
Trash bags for removed floatables
Routine Inspection Procedures
1.
Set up any necessary safety equipment (such as traffic
cones) to provide access to the Up-Flo
®
Filter. Safety equip-
ment should notify passing pedestrian and road traffic that
work is being done.
2.
Remove the grate or lid to the manhole or vault.
3.
Without entering the vessel, look down into the chamber to
inspect the inside and to determine whether the high-water
level indicator has been activated. Make note of any irregu-
larities. See Fig.6 for a typical Inspection View.
4.
Without entering the vessel, use the pole with the skimmer net
to remove floatables and loose debris from the chamber.
5.
Using a sediment probe such as a Sludge-Judge
®
, measure
the depth of sediment that has collected in the sump of the
vessel.
Maximum sediment depth is 16 inches (41 cm).
6.
If the high-water level indicator has been activated after two
consecutive storms, remove the Filter Module lid by turning
the cam latch and remove the Filter Media Pack (
refer to page
11 Replacement Procedures
). Weigh the Media Bags from
one or two modules. Media Bags should be replaced if the
wet weight exceeds 40 lbs (18 kg).
7.
On the Maintenance Log provided by Hydro International, re-
cord the date, unit location, estimated volume of floatables
and gross debris removed, and the depth of sediment mea-
sured. Also note any apparent irregularities such as damaged
components or a high standing water level (see Fig.6 for the
standard standing water level).
8.
Securely replace the grate or lid.
9.
Remove safety equipment.
10.
Contact Hydro International at (800) 848-2706 to discuss any
irregularities noted during inspection.
Bypass siphon sits evenly on Outlet Module.
Standing water level is no higher than the base of the Filter
Module. The Drain Down Filter will be visible if the water level
is correct.
Filter Module Lids are closed.
Fig.6 Inspection view of the Up-Flo
®
Filter.
Page | 8
