Premiere H2O has a system that dumped the water into the hot water line, similar to a hot water loop, but in reverse. There’s a lot of caveats with that arrangement (doesn’t really work with a tankless water heater, for example).

Wait, they push the waste/brine into the hot water line? Wouldn't that defeat the purpose of filtration?

I was thinking more of using it typical gray water usage like watering plants.

I imagine despite the term brine it is still incredibly clean water

> Wait, they push the waste/brine into the hot water line? Wouldn't that defeat the purpose of filtration?

Hot water is for external use only.

... you’ve never used hot water to fill up, say, a pot of water for cooking?

it's gross. Don't do that.

You still absorb an astounding amount of chemicals through your skin.

When you say brine is that in seawater desalination RO or are you using that to include non-seawater RO reject water?

You could definitely use it as gray water but if you are filtering for contaminants, that water would have a higher concentration and if you were pushing it out as gray water, would those areas of the yard have higher levels potentially of contaminants?