:help: i have a tds meter that came with my ro its one you dip in the water...the only thing is it didnt' come with instructions....what do i do just dip it? and what reading am i supposed to get?
all depends on how good your RO unit is... some of them have a hard time hitting 0
mine runs 0-1... when it hits 2... i change the filters
125 outta tap isnt too bad for tap water... some people have tapwater with tds in the couple-hundreds
my tap is in the 60s... i have excellent tap... but still wont use it in my tanks.