SpectraPure®Inc
.
Fax 480.894.6109 Fax us toll-free 1.877.527.7873
E-mail: spectra@spectrapure.com Visit us on the web www.spectrapure.com
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SpectraPure
®
The following chart illustrates the procedure for determination of RO membrane
performance. However, the chart represents only rough guidelines for determin-
ing performance of RO membrane. Depending on your tap water chemistry, the
rejection characteristics of the membrane may vary significantly.
Method of Calculate %
Test Results
Conclusion
Testing
Rejection
TDS/
Measure feed water and Is Rejection
No - Replace Membrane
Conductivity RO product water TDS/
greater than
Yes - Membrane OK
Tester Conductivity
95%
?
Alkalinity
Measure feed water and Is Rejection
No - Replace Membrane
Test Kit
RO product water
greater than
Yes - Membrane OK
Alkalinity 90%
?
Hardness
*Measure feed water
Is Rejection
No - Replace Membrane
Test Kit
and RO product water
greater than
Yes - Membrane OK
Hardness 90%?
*Caution: This test is not to be used on softened water sources.
TEMPERATURE EXTREMES:
1. The unit must be kept out of areas that are subject to freezing
temperatures.
2. High temperatures greater than 100° F (38° C) must be avoided. If
he unit is used outside, avoid putting the system in direct sunlight or
connecting it to a garden hose that may be exposed to sunlight.
TROUBLESHOOTING GUIDE FOR MEMBRANE:
