T.d.s

[helpme74]

I have a HM Digital T.D.S meter and the reading is 001 how high can my tds be? I have TDS4 - TDS Meter & Digital Thermometer

 

[kynekke]

I'm a newb.. what is TDS?

 

[renogaw]

total dissolved solids, and no clue how high

 

[reefreak29]

usually at 5 u want to change your filters on the ro unit , ithink thats what your asking right.

 

[helpme74]

yes this is what i wanted to know .my rodi is about a year old