SpectraPure
®
SpectraPure
®
Inc.
480.894.5437 Call us toll-free 1.800.685.2783
2167 East Fifth St, Tempe, Arizona 85281
20
STORAGE
1. It is recommended that you store your RO System in a cool and dark
place when not being used.
2. Your RO System must always be protected from freezing or
temperatures above 113° F (45°C)
TROUBLESHOOTING GUIDE:
Product Water - Low Production Rate
Cause
Corrective Action
Plugged prefilters
Replace prefilters
Low water temperature
Heat feed water or use higher GPD membrane
Low water pressure
Use booster pump or use higher GPD membrane
Fouled membrane
Replace membrane
No production
Flush Valve may be open
Membrane Troubleshooting Guide
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
Testing
Calculate % Rejection
Test Results
Conclusion
TDS/
Conductivity
Tester
Measure feed water and
RO product water TDS/
Conductivity
Is Rejection
greater than
95%?
No - Replace Membrane
Yes - Membrane OK
Alkalinity
Test Kit
Measure feed water
and RO product water
Alkalinity
Is Rejection
greater than
95%?
No - Replace Membrane
Yes - Membrane OK
Hardness
Test Kit**
Measure feed water and
RO product water
Hardness
Is Rejection
greater than
95%?
No - Replace Membrane
Yes - Membrane OK
**Caution: This test is not to be used on softened water sources.
