[ovx99]

So this was described as a 'decentralized water recycling unit' -- can anyone inform me how decentralizing this service in the form of this appliance is going to be more efficient than large scale bulk wastewater treatment setups, like we have now (or do we)? As an outsider to the industry I don't know what the advantage is in localizing the water processing like this versus doing it all at scale in the same place then piping it back to customers. If it's the case that the water that drains from showers is not being recycled/reused currently, then I see how this makes sense, although I still wonder why doing that locally versus centrally is preferable.

[Someone]

"It cleans and disinfects shower, bath, and washing machine water so it can be reused for toilet flushing, washing machines, the garden, or swimming pools”

⇒ This produces “greywater"(https://en.wikipedia.org/wiki/Greywater). That can also be done (and, I expect, more economically) in a centralised location, but using that water would require laying a second water main to all houses.

An argument in favour of local treatment also might be that it makes it harder/impossible for users to use the wrong kind of water (drinking greywater or using “blackwater" where greywater would suffice)