I am using a dual inline meter. Its checked after the RO membrane, which usually is 4 ppm. Then again after the DI resin which at this point in time reads 0 to 1 ppm.
I was just wondering when other change there resin, as I usually dont change it until it reads the same after DI as it does before.
Both of my DI chambers are blue so I cant see what color it is
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Hi, my name is Corey... And im a reefaholic.
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