SpectraPure
SpectraPure®Inc.
480.894.5437 Call us toll-free 1.800.685.2783
215 South Industrial Drive, Suite 2A Tempe, Arizona 85281-2941
®
18
19. Snap the dual RO membrane assembly into the holding clips.
20. Reconnect the black membrane feed tubing into the push-fitting on the
carbon
pre-filter
housing.
21. Reconnect the black membrane feed tubing into the push-fitting on
Membrane
1.
22. Reconnect the yellow concentrate tubing into the push-fitting on
Membrane
2.
Note: The flow restrictor assembly should remain uninstalled at this point
in
the
process.
23. Put the yellow concentrate tubing and the blue product water tubing in
the drain and turn on the system water supply.
24. Allow the system to flush for several minutes to remove any loose
particles.
25. Turn off the water supply to the system.
26. Depress the collar on the concentrate push-fitting of Membrane 2 with
your thumbnail and remove the yellow concentrate tubing.
27. Replace the flow restrictor assembly into the end of the yellow tubing as
described in the Removal, Adjustment, and Replacement section on
page
7.
28. Turn on the water supply to the system and check for leaks.
29. Check, and if necessary adjust, the Concentrate to Purified Water Ratio
per the procedures described on page 6.
System Maintenance
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
7
System Set-Up
Flow Restrictor Removal, Adjustment, and Replacement
1. Locate the yellow concentrate tubing (Fig. C for Single-Membrane
System or Fig. D for Dual-Membrane System). Remove the tubing from its
push-fitting at the membrane as follows:
a.) Firmly depress and hold the push-fitting collar down with your
thumbnail.
b.) While the push-fitting collar is depressed, pull the tubing straight
out of the push-fitting. Once the tubing is removed, release the collar.
2. Carefully remove the flow restrictor assembly, now visible as a plastic insert
in the end of the yellow tubing (Fig. E). You may use an object such as a dull knife
to help pry the flow restrictor insert from the end of the tubing.
The entire flow restrictor (consisting of the insert plug and thin capillary
tubing) may then be gently extracted.
Note: Take care not to crush or otherwise damage the delicate capillary tubing.
3. Refer to the Flow Restrictor Tables (Fig. F). Find the table that represents the
Flow Restrictor Assembly for the system that you have. Find the
optimum
concentrate flow rate
in the left-hand column and the
length of the
flow
restrictor
in the right-hand column.
Example: If your Flow Restrictor Assembly is for a 90 GPD Membrane and
the
product flow rate
is 170 mL/Min, then the flow restrictor length should
be cut to 6.5 inches (16.5 mm). 170 is about halfway between 164 (7 in.)
and 175 (6 in.).
4. Using a new single-edge razor blade, carefully measure and then cut the
flow restrictor to the total length indicated.
5. Re-insert the flow restrictor assembly into the yellow tubing and firmly
re-seat the insert into the end of the yellow tubing by carefully pressing on
the insert with your thumbnail. Care should be taken not to crush or other-
wise damage the end of the capillary tubing protruding from the end of
the
insert.
