Depends if you are in a home and or where your ro/DI unit is. I have mines in my garage and run a line 250 ft line to my garden slope and use it to fill two containers to water my plants. My 100gpd use to produce a 1:3 ratio of good/waste water. After I got a booster pump, to production is almost 1:1 which is great since we are now in a drought in the western states.
