Quote:
Originally Posted by globaldesigns
All I can tell you is when mine started to creep up on the TDS meter, I replaced the carbon and filter media's (NOT the membrane) and it didn't change much. I then changed the membrane and all was good.
So in my experience the membrane would be it, at least to start. However the other ones are fairly inexpensive, so you can always do them all.
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Thanks! It almost sounds like I should just replace them all!
