GE Merlin Installation And Maintenance Manual page 21

REPLACEMENT OF THE PREFILTER, POSTFILTER, AND RO MEMBRANE ELEMENTS
12. Re-position the assembly and turn the water supply on. Check the system for
any leaks.
CAUTION: When the faucet is opened, water may sputter from the air
gap until the trapped air is purged.
13. Open the faucet and run water for two minutes.
NOTE: Carbon fines may be present until the postfilter element is
flushed out.
14. Shut off the faucet and allow the system to stand idle for 20 to 30 minutes.
15. Open the faucet and run water for five minutes.
16. Check for any system leaks.
NOTE: If the two RO membrane elements were replaced the system
must be flushed according to Step 6 the system startup procedure as
stated above.
The RO system is now ready for use.
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