Re: Cooling attic (and home) by spraying water on roof (shingles)- good/bad?

[Some Guy <Some@xxxxxxx>]

"Robert L. Bass" wrote:
>
> > ... The average home uses about 500 gallons
> > of water a day...
>
> Are you sure about that?  I use much less than that, even with
> lawn sprinklers and a 15,000 gallong in-ground pool to maintain.
>
> > the bill is say 25 dollars for that 15,000 gallons a month.

15000 gallons is about 2005 cubic feet.  It would cost me $77 CDN ($63
USD) for that much water.

> Where I live it's a good deal more costly than that.

http://www.azcentral.com/specials/special26/articles/0122drought-waterrates.html

Cheap water could become thing of past as supplies dwindle
The Arizona Republic
Jan. 22, 2003

"It may not seem like it when you write the check to pay the bill
every month, but water is cheap in the West.  Not only do Arizonans
pay some of the lowest residential rates in the nation - in one survey
of big cities, only San Antonio charged less - the state's farmers tap
into reliable, subsidized sources that allow them to survive a
shifting economy.  The Salt River Project collects about $10 per
acre-foot from its municipal customers, a rate that hasn't changed
much in years. The Central Arizona Project, a $4 billion canal that
brings water to Phoenix from the Colorado River, charges cities about
$105 per acre-foot.  An acre-foot is about 326,000 gallons, or enough
to supply a five-person household for one year.  Tribes have been
reluctant to talk price publicly, but one attorney told a group of
city officials that the cost could start as high as $1,100 per
acre-foot."

$10 per acre foot is practically free.  Are there no carrying or
pipe-line charges?  That wouldn't even support routine maintenance.

An acre-foot is 326,000 gallons, or about 43580 cubic feet.

$100 per acre foot is 0.23 cents per cubic foot.
$1000 per acre foot is 2.3 cents per cubic foot.  That's still almost
half of what we pay (but then some of our costs include sewer surtax).

So what does the average home owner in San Antonio pay for his water?