Am I reading this correctly... you have three DI cartridges (or whatever they're called)? If so, why so much DI? What is your TDS post membrane and pre-DI?
Tom
I use the large cartridge dual DI,I would like to explain but I am sure that it"s wrong too! I am running off a well and usually see a 400+ tds comeing into the unit.Sorry but I am going to bow out of the RO subject now.Just not worth it.
Originally Posted by Tom@HaslettMI
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