Filter Change And Flushing Procedure - Pentair EVERPURE EZ-RO 200/2G Installation & Operation Manual

FILTER CHANGE AND FLUSHING PROCEDURE

RECOMMENDED: Replace mineral feed cartridge
every 6–12 months. For 200 and 375 systems use 4CM
cartridge. RO membranes should be replaced every
12-24 months. Prefilters should be replaced every 4-6
months when capacity is reached, or when feed water
pressure or flow becomes inadequate.
REMOVE FILTERS
1. Turn inlet valve right to the OFF (horizontal) position.
NOTE: Feed water is shut off to filters in this "filter
change" position.
2. Place bucket under RO processor. Open permeate
sample port valve (pointing down) to release pressure.
3. Make sure incoming pressure is at 0 psi.
4. Remove prefilter, mineral addition, and membrane.
Twist filters a quarter turn to left and pull down.
Keep membrane if it will not be replaced. Dispose of
old cartridges that are being replaced.
REPLACE PREFILTER AND MINERAL ADDITION
CARTRIDGES, ADD PLUG TO MEMBRANE PORT
5. a. Add new prefilter to position 1
(insert and turn 90 degrees to right).
b. Add new mineral addition cartridge to position 2
(insert and turn 90 degrees to right).
c. Add RO membrane bypass plug (stored under cover)
to the farthest right position (insert and turn 90
degrees to right).
6. Close the permeate sample port valve (pointing left).
FLUSH PREFILTER AND MINERAL CARTRIDGES
7. Turn reject flush valve to open position (pointing down).
8. Close tank valve.
• Optimized water to equipment will be paused
during this step.
9. Turn outlet valve to closed position – putting
equipment into BYPASS.
10. Direct end of the tank sampling valve tube into
a bucket or drain. Open tank sampling valve.
11. Turn inlet valve to open position.
• Water will start to fill prefilter and mineral
cartridges. Water will run from reject line and
tank sampling valve.
12. Flush prefilter and mineral cartridge for 10 minutes
or until water runs clear.
PENTAIR EZ-RO INSTALLATION AND OPERATION GUIDE
1
3
pre- pre- mineral mineral
memb. memb.
filter filter addn. addn.
plug plug
5
reject
flush
valve
7
9
11
2
remove all three remove all three
4
permeate permeate
sample sample
port port
6
valve valve
closed closed
8
tank tank
sampling sampling
valve valve
10
(open) (open)
12
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