SpectraPure
®
SpectraPure
®
Inc.
480.894.5437 Call us toll-free 1.800.685.2783
2167 East Fifth St, Tempe, Arizona 85281
15
MAINTENANCE PROCEDURES
Prefilter Replacement
For maximum contaminant removal and long membrane life, the sediment and carbon prefilters should be changed at
6-month intervals. If your water contains a great deal of sediment or chlorine, the prefilters might have to be changed
at more frequent intervals to maintain an adequate production rate.
Sediment prefilter and Carbon block prefilter Replacement:
Maintenance Regime:
15-20% drop in pressure OR at least once in 6 months OR when chlorine breakthrough occurs.
Materials Needed:
0.5 micron MicroTec™ sediment prefilter, 0.5 micron carbon block prefilter, filter wrench.
Procedure:
1. Shut off feed supply valve and wait until pressure is relieved.
2. Remove the filter housings from their caps by unscrewing them clockwise as viewed from top or side. A filter
wrench may be needed. Discard old filters.
3. Thoroughly wash out the housings with hot soapy water to which a few teaspoons of household bleach have been
added, and rinse well with clean hot water.
4. Install the new sediment prefilter in the leftmost housing. Check to be sure that the O-ring is positioned in its groove
and hand tighten housing.
5. Install carbon block prefilter in the second housing from the left, making sure O -ring and black gaskets are in plac
e. Hand tighten housing.
6. Turn feed supply valve “ON” and check for leaks.
RO Membrane Replacement
Maintenance Regime:
As needed (Refer to procedure for testing membrane quality on page 19.)
Materials Needed:
Replacement TFC membrane, pliers.
Procedure:
1. Shut off feed supply valve to the System and wait until pressure is relieved from the housing.
2. Next, remove the short 1/4” black tubing from the input elbow of the membrane and lift the membrane housing
from the clips.
3. Unscrew the RO housing lid counterclockwise from base.
4. With a pair of pliers, grasp the membrane stem and pull the membrane from the housing.
5. Wash housing with soapy water and rinse thorougly with hot clean water.
6. Insert new membrane into the housing, with the O-ring end first. The O-ringed tube must fit into the recess at the
bottom of the RO housing. When the membrane is aligned with the hole, push the membrane into the hole until
it bottoms out.
7. Replace housing O-ring on the housing rim and carefully screw the lid back on to the base.
8. Reconnect the 1/4" black tubing to the input elbow of the membrane.
9. Disconnect the yellow drain line from the membrane housing and remove the flow restrictor from the end of the
yellow tubing and reconnect the yellow tubing without the flow restrictor to the membrane housing.
10. Turn on feed supply valve to the System. Flush the membrane and membrane housing for 10 minutes.
11. Turn off the water supply to the System. Remove the yellow drain line from the membrane housing and replace
the flow restrictor in the yellow line.
12. Reconnect the yellow drain line with the flow restrictor to the membrane housing, turn water supply on and check
for leaks.
13. Check ratio of waste water to product water. It should be at least 4:1. If it is not 4:1, check the flow restrictor for
particle plugging or adjust ratio to 4:1. (See Page 8)
