SpectraPure®Inc
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15
SpectraPure
®
In order to accurately determine the condition of the RO Membrane, a
DL1 TDS Meter, which is optional for this unit, is required.
* If you do not have the DL1 meter proceed to page 16*
Before performing the following membrane test with the DL1 Meter, the
DI cartridge(s) must be removed and the empty housing (s) re-installed;
also, the waste to product water ratio must be 4 to 1 or greater (see page
6-7).
Turn the water supply ON and OFF as logically required.
1. Disconnect the BLACK line from the first stage housing (Sediment Filter)
2. Next, you will have to disconnect the “IN” Probe of the DL1 meter and
connect it to the black line. (This step allows you to determine the TDS of
your tap water)
See page 9 for removal of push fittings on tee.
3. Slowly turn the tap water on and direct the stream to a drain. After
you get a good flow coming out of the end of the tee you can test
the
water:
- TAP WATER TDS READING:_______________
4. Once you obtain the tap water TDS reading, reconnect the
“IN” Probe back to its original location.
5. Connect the BLACK line back to the first stage housing
(sediment filter) and run water through the system for 15 min.
6. Note, the reading on the meter with the setting still in the
“IN” position. This is the:
- RO WATER TDS READING:_______________
7. Follow the calculation located on pages 19-21
Note: All water sources are different and are subject to changes in conductivity from
season to season which could affect the monitor reading depending on the time of the
year. For this reason we recommend the use of a conductivity tester in order to receive the
most accurate measurement for determining the condition of the RO membrane.
RO MEMBRANE DIAGNOSTIC:
