Warlock1369
Well-Known Member
No RO system will get you 0 ppm. If they say that run there full of shit. But 5-12 ppm is good.a good r/o system will yield a tds reading of 0 to 5 ppm regardless of how many gallons its rated.
The gpd has nothing to do will how well it works. All should be the same. And as long as you get get a system that gives you more then what you need your going to be happy.