wrote:
>
> right so all waste water is recycled into drinking/bathing water
> eventually, isn't it? Otherwise where does drinking/shower water come
> from?
I suppose, though "eventually" could be a very long time if, say, the
wastewater from my house goes through the treatment plant, flows down
a river (in my case, the Great Lakes System/St. Lawrence) to the
ocean, gets evaporated, is redeposited on earth by a storm, et cetera.
Maybe a particular gallon I flushed gets taken in by the water intake
at Massena, N.Y., or even Cleveland, rather than getting all the way
to the Atlantic, but by then it presumably has been so diluted by the
other water that didn't come from a treatment plant that whatever
"gray"-ness it had leaving the treatment plant has long since become
irrelevant.
I don't know what the recycling time would be for the average water
molecule, but I've read somewhere that a typical drop of water from a
spring in Minnesota needs centuries to reach the Atlantic Ocean.
If the fact that the water you drink today may have had somebody's pee
in it a millennium ago worries you, then take your mind off of it by
considering that the vegetables you eat were quite possibly fertilized
with cow manure. Ashes to ashes, dust to dust, shit to shit.
David Patch
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