GE 000 gpd Operation And Maintenance Manual page 32

SYMPTOM
Low permeate flow rate
(continued)
Low concentrate flow rate,
normal or higher than normal
pressure
TROUBLESHOOTING
POSSIBLE CAUSES
Operating on cold water less
than 13°C (55°F)
Membrane elements installed
backward or damaged concen-
trate seal
Concentrate valve plugged
Concentrate outline line
restricted
Flow meter inaccurate
Dirty concentrate valve
27
REMEDIES
Install a hot/cold feed water
tempering valve if more per-
meate flow is needed.
Operate with a feed water
temperature of 22° - 25°C
(72° -77°F).
Install membrane elements in
the direction of fluid flow.
Flush and clean the machine
immediately. Membrane ele-
ments with damaged seals
should be cleaned and may be
returned for repair.
Remove the concentrate valve
and/or disassemble the
plumbing. Clean the valve.
Examine the concentrate line
for obstructions or kinks,
repair or replace the tubing.
Check the flow rate manually
with a stopwatch and calibrat-
ed container.
Disassemble and clean the
plumbing to the valve.