PEP Filters HMF2 - Manual (Page 4)

HMF2 Series Filter System
Operating & Maintenance Manual
PEP Filters • 322 Rolling Hill Road • Mooresville, NC 28117 • 800-243-4583 • www.pepfilters.com
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Rev. 041204
3. After the unit has been installed, the pressure gauge and air relief valves
should be installed on the top of the filter vessel (some units will have vents
already installed). The filter media (sand, gravel, etc.) should be loaded into
the filter at this time. Refer to the “Loading Media” section in this manual for
a description on how to load the media into the filter tank and the quantity of
media necessary for each filter size.
Piping
The PEP HMF2 filter should be installed as follows (refer to Table 2 for connection
sizes on filter models):
1. Connect a feed water line from the system sump or piping to the connection
labeled "Inlet" on the pump. If the inlet connection is located above the
operating water level of the system sump, install a foot/check valve to prevent
pump suction loss.
2. Connect the return line from the connection labeled "Outlet" to the system
sump or piping.
3. A service valve should be installed on the inlet, outlet, and city water line (if
city water is used) to allow servicing of the filter. For units using a backwash
source other than the system sump, refer to Table 3 to determine the
required backwash flow. Connect this line to the fitting labeled "City Water".
The maximum city water backwash supply pressure on the HMF filters should
never exceed the pressure rating of the filter vessel. If public or municipal
water is used for backwash, a reduced pressure back-flow prevention or check
valve is required in the line (refer to local codes).
Connect a backwash waste line to the connection labeled "Waste". This line
carries the backwash wastewater to the drain. Do not put a valve in the
backwash line and never reduce the backwash line size. Refer to Table 3 for
minimum and maximum backwash flow rates.
Note: If the drain is not large enough to handle the backwash flow rate, it may
be necessary to use a backwash holding tank to collect the wastewater, and
regulate the flow from the holding tank to drain.
4. All interconnecting piping, fittings, valves, or other accessories connected to
the filter system (whether supplied by PEP or others) must be independently
supported to eliminate stress on piping.
Check with local, county, or other government authorities to ensure compliance with
applicable government or industry codes.