SpectraPure
SpectraPure®Inc.
480.894.5437 Call us toll-free 1.800.685.2783
2167 East Fifth St, Tempe, Arizona 85281
®
15
MAINTENANCE PROCEDURES
For maximum contaminant removal and long membrane life, the sediment and carbon pre-filters should be changed at
6-month intervals. If your water contains a great deal of sediment or chlorine, the pre-filters might have to be changed at
more frequent intervals to maintain an adequate production rate.
Sediment pre-filter and Carbon block pre-filter 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 micro-tec sediment pre-filter, 0.5 micron carbon block pre-filter, 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.
3. Discard old filters.
4. 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.
5. Install the new sediment pre-filter ( for the Deluxe System Only) in the left most housing, check to be sure that the
O-ring is positioned in its groove and hand tighten housing.
6. Install carbon block pre-filter in appropriate housing making sure, O-ring and black gaskets are in place. Hand tighten
housing.
7. Turn feed supply valve “ON” and check for leaks. (See “Start-Up proceedures” on page 13).
RO membrane Replacement
Maintenance Regime: As needed (Refer to procedure for testing membrane quality on page 23).
Materials Needed: Replacement TFC membrane, pliers.
Procedure:
1. Shut off feed supply valve to the DWS 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 lower 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. Re-install 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. Flush the membrane and membrane housings 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 “Start-Up proceedures” on page 13).
