Up-Flo
®
Filter Operation and Maintenance Manual
The Up-Flo
®
Filter is a modular high-rate stormwater filtration device. As shown below, it is typically installed into a 4-ft diameter catch
basin structure. Each Filter Module has a screen and support bracket that is attached to the concrete manhole and each contains a Media
Pack that includes Flow Distribution Media and two Media Bags (Fig.1). Modules can attach to each other to form a “ring” of up to six
modules. Up to two of the modules are attached to an Outlet Module that has a Bypass Hood and Drain Down Filter. The modular design
can be supplied in different configurations depending on the application as shown in the following illustrations.
An upward flow path through the Filter Modules allows stormwater to be screened and filtered. In addition to the screening and filtering
processes, gross pollutants will also settle into the sump or float to the surface of the water held within the manhole. The standard units
are supplied with a 3-ft (0.9m) sump to allow for sediment and gross pollutant accumulations between maintenance intervals.
The following manual describes the operation of the Up-Flo
®
Filter and provides general maintenance requirements that will ensure
the filter will continue to operate and perform as intended. In general, a minimum of two inspections are required per year to monitor
sediment and gross pollutant accumulations. In order to achieve an annual TSS removal rate of 80% for the Up-Flo
®
Filter, the minimum
maintenance frequency specified in the maintenance section for replacement of the Media Pack and removal of accumulated sediment
from the sump is mandatory.
Hydro International offers recommendations for certified maintenance contractors. It is hoped that owners will take advantage of this
service as these contractors have been trained and certified to ensure that maintenance will be performed properly. Should the owner
choose to conduct maintenance procedures themselves, it is recommended that Hydro International be contacted to discuss the following
procedures and consider contracting a representative from Hydro International for the first maintenance cycle.
See page 17 for more about Hydro International’s Stormwater BMP Maintenance Contractor Certification Program.
Product Overview
Page | 3
Up-Flo
®
Filter Components
1. Inlet Grate
2. Siphonic Bypass Hood with Floatables Baffle
3. Filter Module
4. Outlet Module
5. Media Pack
6. Angled Screen
7. Drain Down Filter Assembly (
refer to Fig.10 for closer view
)
8. Sump
8
6
5
3
4
2
7
1
Fig.1 The components of the Up-Flo
®
Filter.