Maintenance
The RO system contains filters and membranes which must be replaced periodically for
proper operation.
Replacement Part
Frequency
551-PWS-2509-05-OR (First Sump)
Every 6-12 Months
507-PWCB-2509-OR (Second Sump)
Every 6-12 Months
507-PWCB-2509-CL-OR (Third Sump)
Every 6-12 Months
255-PWM-1812-XXX** (RO Membrane)
Every 3-5 Years
530-PW-INLRO-14-B (Carbon Post Filter)
Every 6-12 Months
**XXX denotes Membrane GPD Capacity. IE 255-PWM-1812-050 is a 50 GPD Mem-
brane
NOTE: Filter change frequencies may be amended, depending on source water
conditions.
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