- Location
- Forest Hills
any1 know if 0 ppm on TDS mean 0 ppm?
i tested some water after a TWP(tap water purifier) with a calibrated tds meter n reads 0 ppm. does this mean is really 0ppm n safe to use?
i tested some water after a TWP(tap water purifier) with a calibrated tds meter n reads 0 ppm. does this mean is really 0ppm n safe to use?



