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#1
05-04-2011, 01:19 AM
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Alright sorry it is actually 1 ppm not 0.01ppm. And as for calibrating it . . its an inline HM Digital TDS metre and there is no way I know of calibrating it. The metre is only about 3 months old and has always worked. . . hmm
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#2
05-04-2011, 03:24 AM
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Is it a dual inline tds? They can be calibrated, but it comes calibrated from the factory and 3 months is not a long time. Unless of course, it was bounced around during shipping.
Maybe the LFS would check it where you bought it with their water. But even 1 ppm is not very much. Some people are using tap water without any trouble (not that I would recommend this though) If you have a dual tds, what is the tds of the incoming water? What is the tds of the exiting water from the membrane, before the DI?
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#3
05-04-2011, 04:24 AM
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all depends on the post RO measurements to how hard the DI needs to work.
TDS last time I measured in Edm was out of the tap at 168, 007 after my membrane and still get more than 6 months out of my DI resin. This is at about 2g a day plus water changes.
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my tank
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#4
05-04-2011, 02:42 PM
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Its leaving my membrane at between 1 and 2 ppm. Im starting to think maybe I got a bad DI replacement cartridge. . . Its a coralife R/o Unit
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Hybrid Mode
