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Cuno SQC-3 RO System Question

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03-21-08, 09:52 AM

steven15516

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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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03-21-08, 12:02 PM

justalurker

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Quote:

Originally Posted by steven15516

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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