So how much does installing this super toilet cost, best case?
How much to run a line of fresh water to the house?
If <cost of toilet> is not less than <cost of fresh water line / 10>, it seems like not a win - as fresh water can solve both drinking and help with sanitation (though not get you all the way there).
In 3rd world locations, you can be walking 3km every 2nd day to fill a jerrycan of water.
If that's the case then you aren't going to use that to flush.
And even if you do (using grey water after cleaning etc.), then you won't have the toilet inside the house.
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