Need help with my RODI Unit

Zatai41

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HI

I have a dual TDS meter connected to my 5 Stage RODI unit ( I added 2nd DI , 6 stage now ? ) .
The In of the TDS is connected to the output of the RO memebrane and the out of the TDS meter is connected to the outpur of the 2nd DI.

The in on the TDS is reading 2PPM while the out is reading 4PPM... should I chang the DI ? The color looks ok...

I have a feeling its my TDS meter that is faulty ,

Thank you in Advance.
 

Retro Reefer

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Not sure how much water you have ran through the new DI unit but you typically need to run quite a bit of water through new resin before it will read 0 TDS. You may also want to take a sample and see if your LFS can verify your readings to rule out your TDS meter being faulty.
 

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