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View Full Version : R/O filter GPD and TDS relationship



Ping
Wed, 10th Sep 2008, 08:29 PM
Does a lower GPD R/O membrane put out a lower TDS than a higher GPD membrane?


Last week I replaced the 75 GPD R/O membrane and pre-filters. Today the DI needs changing because the TDS just hit 9.

I have not bothered to check the TDS before the DI because it is a hassle. I will check this if the new DI beads saturate too quickly.

Thoughts?

hobogato
Wed, 10th Sep 2008, 09:07 PM
from what i understand, the answer to your first question is yes. hopefully russ from buckeye will chime in and let you know for sure.