I think the OP meant, get rid of the toilet water expense. From what I can tell, the toilet is arranged so that gray water from the sink is used to fill the toilet tank. When you flush, it uses that once used sink water to rinse and fill the bowl. This isn't new. Just not something most people are willing to deal with. For one, the back of the toilet needs to be accessible and that isn't how baths are typically designed.
You can spend a lot of time and money picking out the perfect floral bouquet for your date ... but you're probably better off checking if you have bad breath and taking the porn out of the glove compartment.
The moral: you gain more by not being stupid, than you do by being smart. Smart gets neutralized by other smart people. Stupid does not.
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