RO Unit on a well

[bassman]

Originally Posted by Slick Fork

The RO/DI unit should bring the TDS down to zero, meaning it strips all the dissolved solids including minerals out of the water. Theoretically the output from RO/DI should be pure h2o.

Well there ya go, I learned something new today.

I guess a water softener does the exact same thing as RO then? or does it leave some minerals in? Is the need for a softener just to treat larger amounts of water?