ro system with no waste
 

I was readin around on this forum a couple of months ago and read an interesting article about setting up a ro system that has 0 waste water. I believe this was accoplished by having more than one membrane. I am looking to set one of these systems up and need a little help.
Thank you Dustin

Dustin,

In many cases it is not cost effective. The membrane replacement cost can surpass the water cost. What is your household system pressure and TDS?