5
Birm Filter
A backwashing-type filter containing special
media that causes the iron in the air-injected
water to precipitate throughout the filter bed
This process produces an iron removal ca-
pacity of up to 30,000 ppm. The media re-
quires no chemical regenerant for oxygen
enrichment. Periodic backwashing of the filter
bed flushes the precipitated iron to the drain
and readies the filter for use again. The dura-
tion of the backwash procedure will vary de-
pending on the iron concentration but gener-
ally is 10 minutes total. The frequency of
backwashing depends on iron concentration
and water usage and ranges from daily to
once every 10 days.
Before Starting Installation
Tools, Pipe, and Fittings, Other Materials
•
Pliers
•
Screwdriver
•
Teflon tape
•
Razor knife
•
Two adjustable wrenches
•
Additional tools may be required if modifi-
cation to home plumbing is required.
•
Plastic inlet and outlet fittings are included
with the filter. To maintain full valve flow,
3/4” or 1” pipes to and from the filter fit-
tings are recommended. You should main-
tain the same, or larger, pipe size as the
water supply pipe, up to the softener inlet
and outlet.
•
Use copper, brass, or PEX pipe and fittings.
•
Some codes may also allow PVC plastic
pipe.
•
ALWAYS install the included bypass valve,
or 3 shut-off valves. Bypass valves let you
turn off water to the filter for repairs if
needed, but still have water in the house
pipes.
•
5/8” OD drain line is needed for the valve
drain. A 10’ length of hose is included.
with some models.
Summary of Contents for 89BM-100
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