Josh&Sarah February 28, 2020 Share February 28, 2020 Hey everyone. The in-line TDS on my 7 stage is suddenly reading 1. I replaced everything a couple moths ago... new cartridges, membrane, and 3 new color changing resin tubes. I’ve been getting 0 ever since. Now I’m getting 1 TDS today but the DI is still all green in every tube. What gives? mahalo. Link to comment Share on other sites More sharing options...
WheresTheReef February 28, 2020 Share February 28, 2020 Could you provide a little more info? What RODI filter do you have? Did you pack it the resin tightly? Did you flush the carbon filters? What is the TDS coming out of the membrane into the resin stage? Is this city water, or well water? Sorry have to ask...did you hook everything back up correctly? Link to comment Share on other sites More sharing options...
Jon Lazar February 29, 2020 Share February 29, 2020 Are you certain that the resin is color-changing? Not all resins do that. Link to comment Share on other sites More sharing options...
DFR March 1, 2020 Share March 1, 2020 This might sound obvious but if you haven’t, purge your system for a couple minutes before you take the reading. More info would also help better diagnose. Link to comment Share on other sites More sharing options...
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