Village LW-160, User Manual And Reference Manual

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MAINTENANCE
16
VMT - v. JUNE 2008
5.4 WHEN TO CLEAN
The RO unit must be chemically cleaned when product water output drops below 85% of original
production. The frequency of this occurring will vary greatly upon feed water and usage pattern. Fouling
from the membrane will naturally occur through regular RO use.
Prior to cleaning the membranes, verify that any reduction in product output is not the result of a
corresponding variation in raw water inlet temperature or salinity. Refer to
Section 3.4: FACTORS
AFFECTING PERMEATE PRODUCTION for more information.
NOTE: Product water output of the system is dependent upon feedwater temperature, RO feed pressure
and feedwater salinity. Reductions in product water output due to these factors are normal and
may not indicate the need for membrane cleaning.