On one hand, we don't need potable water to flush a toilet. On the other hand, flushing a toilet with dirty water is going to leave your house smelling like whatever's in that water.
Of course, if the system is cycled frequently (i.e. the water doesn't stagnate for months), then it's even better
You may not be doing anything wrong and still get a bad result, while somebody else in a different location may do a lot of things wrong and still get good results.
I’m not sure I’d go that route, but it seems to work for him, and makes an area where wells don’t produce habitable.
I meant more utility provided grey water. Meaning they still clean it up...just not all the way to drink quality. As with many things in life getting to those last few % to 100% are disproportionate and incrementally expensive/hard. So if you can flush toilets with 95% or whatever that's a win
It's not that expensive to install at that time and saves a lot of potable water. Seems like a no-brainer to me to do this everywhere.
You're also not paying for the sewer use if you flush with it (since sewer isn't metered)