TDS R/O at 15 bad?

[KurtL]

I know it should be at zero but is a TDS of 15 that bad?​

 

[Frank@Wall]

Before or after the DI?

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[KathyC]

If that is the TDS of the water you are putting into your reef..yes it is bad.
I usually change my filters when mine gets to 2.

 

[h2o]

i change my filters when tds get to 3

 

[SanmanReefer]

It all depends, before the DI cartridge is not a problem. After the DI cartridge any reading past 2 is bad. I change mine when I get a 2 reading. Hope this helps!!

 

[ecvernon]

I get a reading of 33 to40 out of the tap I usually change filters around 2 tds

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[LatinP]

I change my filters whenever they get above 0, that said I'm talking about the TDS after the DI it's perfectly normal to get 1-3 maybe 4 before running water through the DI chamber but yea 15 is pretty high.