SpectraPure®Inc
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7
SpectraPure
®
FLOW RESTRICTOR REMOVAL, ADJUSTMENT, AND REPLACEMENT:
1.
Locate the yellow concentrate tubing (Page 8) 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. B). 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
coller and thin capillary tubing) may then be gently extracted.
Note: Sometimes, the Flow Restrictor might get stuck in the membrane fitting. To remove, use
needle nose plyers and rock the collar back and forth, while pulling. Take care not to crush,
stretch or otherwise damage the delicate capillary tubing.
3.
Using a new single-edge razor blade, carefully measure and then cut the flow restrictor.
4.
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.
5.
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.
6.
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.
