[Greenbuilding] history of toilet flush volume

[Reuben Deumling]

On Mon, Apr 21, 2008 at 2:33 PM, Frank Flynn <frank at declan.com> wrote:

>
> Don't forget that most older toilets dump 1/2 of fresh water down the over
> flow tube while filling the tank.  On most older toilets you can see this
> if you take off the top and watch it flush. They do that to ensure the
> bowl is filled.

you are correct about a bunch of water going down the overflow tube, but I'd
suspect that would unlikely be more than a gallon in the extreme? More
things to measure.. :-)

And here a piece from the NYT on a 14gpf toilet!
*http://tinyurl.com/3mlvg3*

>
>
> I've never measured the actual volume but I have had an older one and 7
> GPF does not seem far off; they use a lot of water compared to a new low
> flow one.
>
> Frank
>
>