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Old 05/25/2018, 03:24 PM   #1
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Poopapotamus's Avatar
Join Date: Dec 2016
Posts: 17
Odd TDS readings on RODI

I have been noticing a strange TDS meter reading lately on my MaxCap 90GPD 5 stage. lately when I run it, on the second TDS meter (the one measuring my output water, I get a reading of around 2 TDS going into the DI resin, and a higher number coming out (5-12). This doesn't make sense to me? I am in the time frame that I should be replacing my filters, so I am guessing that is part of the issue, but I don't understand how I can have 2TDS going in and something higher coming out? Just to state the obvious, I have not touched the TDS meters since the system was initially set-up, and the system was put in by the local custom aquarium guy, so I am pretty sure it is correct.
Thanks In Advance

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Old 06/01/2018, 10:24 AM   #2
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Join Date: Jun 2003
Posts: 4,638
Hey Ron,

I apologize for not responding to this post when it came out 6 days ago, we really seem to be having issues with getting notifications about new threads. I'm going to get this resolved asap so we don't miss this.

That is quite odd, I would take the probs out and clean them to ensure accurate readings.

Replace the filters - clean the probes and see what the reads may be. Keep me in the loop and feel free to reach out to me via email [email protected]


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