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23-05-2005, 06:22 PM

The big cup registered a reading of "71 ppm" whereas the TDS meter read "zero ppm". So with this TDS meter, I don't need to estimate or agah agah when to replace the DI cartridge.

23-05-2005, 06:22 PM	#3
nim75sg Guest Posts: n/a	The big cup registered a reading of "71 ppm" whereas the TDS meter read "zero ppm". So with this TDS meter, I don't need to estimate or agah agah when to replace the DI cartridge.