GE Merlin Installation And Maintenance Manual page 19

REPLACEMENT OF THE PREFILTER, POSTFILTER, AND RO MEMBRANE ELEMENTS
5. Remove the support leg from the three sumps and unscrew the top sump as
shown to access the prefilter element. The support leg functions as a wrench
to loosen the sump, Figure 7.
NOTE: There is no need to disconnect tubing from fittings on the
manifold. Remove locking bar and pull fittings out. Lubricate O-rings
with silicone prior to re-assembly.
NOTE: If changing only the prefilter and postfilter, the other sumps do
not need to be removed.
If changing the membrane elements, the prefilter and postfilter should
also be changed.
6. Remove exhausted prefilter and discard.
CAUTION: The person handling the filters and membrane elements
must have clean hands to keep the system sanitized. The use of sterile/
latex gloves is recommended.
7. If changing membrane elements:
A. Remove membrane sumps. Remove and discard used elements.
B. Remove new elements from packaging.
CAUTION: Elements contain a foodgrade preservative. The use of
sterile/latex gloves is highly recommended.
C. Lubricate element O-rings, brine seals, and sump O-rings with silicone
lubricant.
Figure 8
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