How much waste water does a RO unit produce?

[fencer]

4:1 with booster pump
8:1 without

[mark]

you can get a valve to adjust the ratio (here), I have mine for 3:1

[Bloodasp]

mine makes about 1 gal RO for 3 gal waste. tried calculating how much it would cost to with filters and membranes and waste water hopefully I got it right, it costs about $0.80 per gallon of RO water produced. biggest cost comes from the RO membrane.

[Wayne]

Hum well I guess I will have to plumb a line into the sink drain. I was originally planning on putting it into a bucket, but after I make 5 gallons of water and have 20 gallons of waste, esshh! Thanks

[globaldesigns]

Originally Posted by fencer

4:1 with booster pump
8:1 without

Is this really true? Can someone verify. If this is correct, I think I should get a booster pump. why waste water!

[Slick Fork]

I get about 3 Gallons waste to 1 gallon pure with a booster pump

[lorenz0]

Use wasted water for other stuff. Jdigital and I used it for our laundry. Now the waste is used to water plants around at my parents house.

[mike31154]

Originally Posted by globaldesigns

Is this really true? Can someone verify. If this is correct, I think I should get a booster pump. why waste water!

Depends on what your source water pressure is in the first place. Before you go getting a booster pump, get yourself a pressure guage and measure your input water pressure. If it is 60 psi or better, it's a waste of money to add a booster pump.

[mark]

3:1 without a booster pump

[paddyob]

Seems like a strain on natural resources.

Like drinking bottled water... it takes 7 times the amount of water in the bottle to produce it.

If the few of you who mentioned it are recycling the water... good on yah... for the others that are dumping it down the drain... it's money out of your pocket everyday. Throw it my way instead.. I'll buy a fish ha ha!