LF well used RO system

[timmmmy55]

ya i sold my RO unit as i did make my mind up tho, but you say there is amonine that comes out of the filter?

[Ryanerickson]

Coming from a plumber hooking up ro waste to washing machine as far as I know is not easy most people use hot water to start with so that ends that idea right away but even with cold wash you would need a large expansion tank and a bunch of new plumbing installed even with that I doubt it would have the pressure and volume needed to operate properly . Other options are using in garden I know people that drink it but our water out of tap is 8-9 ppm so pretty clean.

[The Codfather]

There are several RO systems that are a zero waste system. I use one at home myself, the waste water is fed directly back into your potable system.
Google it. A couple fittings and you are in business.