CAUTION: IF EXCESSIVE AMOUNTS
OF CARBON MEDIA CONTINUES TO
DISCHARGE TO THE DRAIN DURING
BACKWASH—STOP!
(1) The backwash flow controller orifice
maybe installed incorrectly;
(2) The flow during backwash is too
high;
(3) The media maybe loaded
improperly.
Inspect and repair.
6. Place the unit into the RINSE /
SETTLE position and allow the media
to settle for the next 15 – 20 minutes.
7. Place the unit into the SERVICE
position and observe the water out
of the service line (disconnected
from the RO supply). Perform the
WHITE cup sample tests until the
water is clear.
8. Stop the water flow into the
Activated Carbon Filter and isolate
the feed water and service lines.
Allow the activated Carbon media to
HYDRATE for 24 hours (12 hours
minimum).
9. After HYDRATION of the media,
perform steps 1 through 7 at least 2-
3 times to remove all loose Carbon
fines throughout the media bed.
Perform a Chlorine test before the
Carbon filter and record the PPM level
of Chlorine residual.
10. Perform a Chlorine test after the
Carbon filter and record the PPM
level of Chlorine residual. (MUST BE
ZERO for feed water supply to the
RO unit.) Perform the WHITE cup
test, the water should be clear with
NO Carbon fines present.
11. If Chlorine is still present, check the
installation of the controller valve.
The O-rings may not be seated
properly or the distributor is too
short. Verify proper flow design
through the Carbon filter to prevent
channeling due to low flow or high
flow conditions. Possible Chlorine
level is too high rated for the design
of the Carbon Filter media bed.
Should you have any problems or
require additional assistance, please
call our Manufacturer’s Representative
or Dealer that provided the equipment
to you.
EPRO 150-8000 O&M MANUAL Rev.04/03 Page 34 of 55
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