SpectraPure
SpectraPure®Inc.
480.894.5437 Call us toll-free 1.800.685.2783
215 South Industrial Drive, Suite 2A Tempe, Arizona 85281-2941
®
16
System Maintenance
RO Dual-Membrane Replacement
Maintenance Regime:
As needed. Refer to the procedure for testing mem-
brane quality on page 19.
Materials Required:
2 Replacement Encapsulated RO Membranes
Procedure:
1. Turn off water supply to the system.
2. Mark, or otherwise note, the locations of the yellow, blue, and black
tubing connected to Membranes 1 and 2 (see Fig. D).
3. Depress the collar on the Membrane 1 feed push-fitting with your
thumbnail and remove the black membrane feed tubing.
4. Depress the collar on the Membrane 2 concentrate push-fitting with
your thumbnail and remove the yellow concentrate tubing.
5. Remove the flow restrictor assembly from the end of the yellow tubing
as described in the Removal, Adjustment, and Replacement section on
page
7.
6. Place the flow restrictor in a safe location where it will not be acciden-
tally crushed or damaged.
Fig. G: Dual RO Membrane Assembly
Left Side View
Membrane 2
Membrane 1
Membrane 2
feed push
fitting
black inter-
connect feed
tubing
blue product
water
interconnect
tubing
Membrane 1
concentrate
push-fitting
Membrane 1
product water
push-fitting
SpectraPure
®
SpectraPure®Inc
.
Fax 480.894.6109 Fax us toll-free 1.877.527.7873
E-mail: [email protected] Visit us on the web www.spectrapure.com
9
System Set-Up
6. Re-insert the yellow tubing into its push-fitting in the RO membrane as
follows:
a.) Moisten the O-ring seal inside the concentrate outlet fitting by dripping
a few drops of clean water into the fitting.
b.) Grasp the yellow tubing near the flow restrictor end, and insert the
tubing into the push-fitting. Push the tubing into the fitting until
resistance is felt, approximately 1/2 inch (12.7 mm). The tubing is now
resting on the O-ring seal inside the fitting.
c.) Firmly push the tubing approximately an additional 1/4 inch
(6.35 mm) further into the fitting to completely seat the line into
the fitting and O-ring seal.
7. Turn on the system water supply and check for leaks prior to further
use or testing. If a leak is observed, you may not have pushed the
yellow tubing into the push-fitting far enough to seal the tubing
against the O-ring. Turn off the system water supply and reseat the
tubing as described above.
