Dual TDS question
 

I just hooked up a dual TDS to my Maxxima Hi S RODI- I used the RODI to fill my 180G tank and 70G sump. I am showing a reading of 9ppm In to the unit and 24ppm out- shouldnt these numbers be opposite? I checked my RODI connections and they ae all correct

Sounds screwy to me. Not sure what's the problem though. How old are your filters & resins?

If you just hooked it up your out reading will be a little high till your filters break in. Do you have a flush option on your unit, if so us it a little bit more. The out reading will drop (should not take long) I would think to 0 if all thats going in is 9. But yes, ## a little messed up.

Hi Mike

Mine reads 13 - 18 in and 0 out. Run it for a while to flushes it out.

Tom R

the RODI is new....Approx 250G have run through it. My dual TDS shows the red wiring as in and the blue as out, I was wondering if the factory labeling was wrong.

Mine is the same, red for in and blue for out.