Why? most people only have it attached to their drinking/cooking water, it ain't that bad. that's worrying about the 1% problem when the 99% problem is stuff like industrial usage and watering lawns in areas that were once arid scrub lands.

I've an aversion to paying for potable water and then running it right down the drain with a very slight increased concentration in contaminants, other conversations regarding filter efficiency in this thread were rather eye opening. It feels like basic "turn the tap off while you brush your teeth" wastage writ large. At the very least, plumb it to grey water uses first.

Yes, in the big scheme of things its a rounding error against industrial uses but that still doesn't mean I'm going to leave my hose bib running 24/7.