Cuno SQC-3 RO System Question


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Old 03-21-08, 09:52 AM
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Cuno SQC-3 RO System Question

How do I know when to change the RO membrane filter?
 
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Old 03-21-08, 12:02 PM
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Originally Posted by steven15516 View Post
How do I know when to change the RO membrane filter?
The best service life of a membrane comes with the manufacturer's recommended replacement intervals of the filters. If your TDS is very high more frequent filter replacement is prudent.

A good rule of thumb for membrane replacement is when the rejection rate falls below 90%.

If your RO uses/has a flow restrictor it's a good idea to replace that when replacing the membrane.
 
 

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