PEP Filters SMF2-FG - Manual (Page 11)

SMF2-FG Series Media Filter
Operating & Maintenance Manual
PEP Filters • 322 Rolling Hill Road • Mooresville, NC 28117 • 800-243-4583 • www.pepfilters.com
704-662-3133 (Outside USA) Page 10 of 16 Fax 704-662-3155
rev. 01/02
FILTER TANK
The filter tank internal components should be visually inspected annually or whenever
backwashing does not reduce the pressure of the filter tank to the starting media gauge
pressure. On the SMF-FG filters, remove the lid on the top of the tank to inspect the
internal components. Note: Always use care and follow proper shutdown procedures.
Inspect the over-drain assembly for any debris blockage or damage and clean or replace if
necessary, and inspect the media. The SMF-FG filters have a 1.5" (40mm) drain plug
located on the bottom of the tank for easy removal of the media and inspection of the
under-drain assembly. Over a period of time, foreign matter may become imbedded in the
media pack that cannot be backwashed out. Contaminated media should be discarded.
Check the under-drain laterals and inspect for blockage or damage. Clean or replace if
necessary. Refill tank with the proper amount of uncontaminated media, following media
loading instructions (Table 6).
WATER TREATMENT
Filtration is an effective way of reducing the level of contamination in a system but is only
one component of a water treatment program. Dissolved solids originally present in water
remaining after evaporation cannot be eliminated by filtration. The concentration of these
dissolved solids increases rapidly and can cause scale and corrosion. In addition, airborne
impurities and biological contaminants including Legionella may be introduced into the re-
circulating water through the air and make-up water.
To control potential contaminants a water treatment program must be employed. In many
cases a simple bleed-off in the system may be adequate for control of scale and corrosion.
The filter backwash can be used to constitute a portion of the bleed. However, biological
contamination can be controlled through the use of biocides and such treatment should be
initiated at system start-up and continued regularly thereafter.
For specific recommendations on water treatment contact a competent water treatment
supplier.
FACTORY AUTHORIZED PARTS
PEP maintains a stock of replacement parts. Shipment of parts is normally within three
days after receipt of an order (provided the item is in stock). In emergency situations,
shipment can usually be made within 24 hours (if stock). Be sure to include the unit serial
number and model when ordering parts.
To facilitate servicing the unit, it is suggested that the following parts be carried on hand: