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View Full Version : Acceptable CO2 level for RO/DI?


joejvj
02/08/2018, 01:32 PM
I'm trying to determine why my DI cartridges only last for about 150 gallons with 4 TDS in and 0 TDS out.

I am on a well and everyone says wells have high dissolved CO2. So I calculated my CO2 by using various online calculators. My parameters are pH:7.1, KH:154 ppm, water temp: 55F. I get answers from 24 to 29 ppm CO2.

Is that high or low? I can't find any reference to "acceptable" CO2 levels for an RO/DI system.