[yojo]

That’s… not how it works. The RO membrane keeps contaminants on one side of the barrier, but it requires that they still be in solution. It’s not like you isolate all the bad stuff then mix it back in, you’re just siphoning off some clean water from the rest of the mix.

Obviously I don’t feel great about the waste, but I’ve got two kids under 6 and I’m trying to do what I can to avoid dosing them with this crap.

I do my best to make up for it in other ways - not watering any landscaping, scraping but not rinsing dishes, water off while brushing teeth/lathering hands, low flow shower heads and toilets, etc. But I'm not aware of another way to get sufficiently clean water.