TDS meter: where to put it in a RO/DI filter?

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dragonfisher33

Aquarium Advice Addict
Joined
Apr 8, 2013
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Location
Atlanta, GA
so i just got a used Coralife RODI 55GPD unit and a new dual inline TDS meter. without instruction and couldn't find a video specifically for noobs on how to put a TDS meter on a RODI unit, can someone please enlighten me on this subject matter?

obviously i want the output of the TDS on the light blue purified line from the RODI, but what about the input of the TDS? i don't want to place directly at where the water enters the RO membrane. where else can i put it at? (which color of the lines)

knowing where to put the input/output of the TDS meter, how do i actually install it? do i, for example, cut the purified water hose into two and stick the output accordingly?

total noob when it comes to RODI and TDS, please be patient with me and include as many details as you can. Kind in mind, just don't bite....hard.
 
One after the DI resin and the other either before the resin or on the inlet.

BRSTv on youtube has videos on this.
 
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