TDS on RO/DI reading .004ppm
- Thread starter bsr2430
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W1ngz
Failed Padawan
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I assume you mean 4 and not 0.004?
I change my sediment and carbon all together when I see the pressure in to the membrane drop by 10 psi. In my case that's from 70 to 60 or if I notice the sediment filter is completely brown with no white anywhere.
I change my membrane when, after a good flush I can't get the TDS between the membrane and the DI below 5.
I change my resin when I notice anything other than 0 out.
I change my sediment and carbon all together when I see the pressure in to the membrane drop by 10 psi. In my case that's from 70 to 60 or if I notice the sediment filter is completely brown with no white anywhere.
I change my membrane when, after a good flush I can't get the TDS between the membrane and the DI below 5.
I change my resin when I notice anything other than 0 out.
