Specifications

M-Series Water Purification Machines
1238160 Rev. D 4-7 Operation and Maintenance
4.5 Sepralator Replacement
As time progresses, the efficiency of the sepralator will be reduced. In general,
the salt rejection does not change much until 2-3 years after installation, when
operated on properly pretreated feedwater. The permeate flow rate will begin to
decline slightly after one year of operation, but can be extended with diligent
flushing and cleaning of the machine. High pH feedwater and/or precipitation of
hardness can cause premature loss in rejection and even flow rate. The
following procedure is to be followed to replace existing sepralators in the
machine.
1. Remove the end caps and clamps from all of the sepralator housings.
2. Remove all of the sepralators from the sepralator housings in the direction
of flow (where possible). If necessary, a sepralator can be removed
against the direction of flow. A heavy-duty pliers or channel lock pliers
may be necessary to pull the old sepralator housing.
NOTE:
Do not run the machine in normal operation on water over 85°F (29°C).
CAUTION:
New units with new or replacement sepralators must be rinsed to drain under
normal pressure for a minimum of six (6) hours before first exposure to
formaldehyde or irreversible damage may occur.