RO/DI units, are they all the same?

[islandcreation]

I have questions in regards to these units. I have a maxxima 24 GPD and I go through I think 3 gallons to make 1 gallon of RO/DI. Does that sound about right? And are there any units out there that create RO/DI without wasting gallons? With the wasted gallons does anyone do anything creative with it or do they just connect it to a sewer line? Thanks

 

[corndogg]

3 to 1 ratio is pretty good. There are some very expensive commercial units that minimize waste water by routing through a second ro membrane but for the consumer it wouldn't be cost effective.

I used to have my ro drain into the washing machine but I now have a front loading washer so I can't do it anymore. Some use it to water plants. My new thing is I store it in a big drum so that when I'm done washing my car, I do a final rinse with that water. By doing so, I don't have to make any effort drying it and it eliminates water spots.

Remember, the "rejected" water is still cleaner than tap water as it has been through a sediment filter or two and carbon filter. So although I think of it as "dirty" it is actually not. So anything you could do with tap you could also use this for.

 

[islandcreation]

<a href=showthread.php?s=&postid=12296330#post12296330 target=_blank>Originally posted</a> by corndogg
3 to 1 ratio is pretty good. There are some very expensive commercial units that minimize waste water by routing through a second ro membrane but for the consumer it wouldn't be cost effective.

I used to have my ro drain into the washing machine but I now have a front loading washer so I can't do it anymore. Some use it to water plants. My new thing is I store it in a big drum so that when I'm done washing my car, I do a final rinse with that water. By doing so, I don't have to make any effort drying it and it eliminates water spots.

Remember, the "rejected" water is still cleaner than tap water as it has been through a sediment filter or two and carbon filter. So although I think of it as "dirty" it is actually not. So anything you could do with tap you could also use this for.

Thanks Jason. Just trying to get some ideas rather than wasting all of that water.

 

[islandcreation]

I don't have my statement with me plus I'm in North Carolina trying to get used to the time change. Does this seem right, $2.43 is the cost for 1,000 gallons of water. I googled cost per gallon via santa rosa CA and that what was shot back. Can anyone confirm?

 

[gdm42001]

check out the Watts Zero Waste RO unit