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tds after membrane
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  1. General Reef Discussion
    Hi, I'm having trouble with a RO installation. My TDS is reading at around 70. I have tried 2 different RO membranes and 2 different filter housings (different brands0. I have a whole house filter and TDS going into the RO filter is 350 ppm. Also, I have a pressure regulator, and I have dialed...
  2. General Reef Discussion
    What is an acceptable range of TDS after an RO membrane? At what point does it become unacceptable.
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