[Greenbuilding] Toilets that Work: throttling flush volume on good performers

[Reuben Deumling]

On Thu, Mar 6, 2008 at 10:26 PM, Jeffrey Osier-Mixon <jefro at jefro.net>
wrote:

> When we built this past year we installed Toto Drake toilets.
> ...
> I never thought I would be writing this in a public forum, but I am
> seriously impressed with these toilets.  They claim 1.6 gallons, but if
> they use more than about half of that per flush I would be very
> surprised.


I'd be very interested in measurements. In my experience it is very
difficult to gauge the volume of water a toilet uses by sight. The speed
with which the water flows through is also critical. The Cadet 3, as well as
the Drake use a 3" trapway rather than the conventional 2" design, making
comparisons by sight to older models problematic. This link corresponds to
the study that keeps being updated, but is fast becoming the new metric for
evaluating the performance of toilets:
*http://tinyurl.com/2l7n7r*<http://www.cwwa.ca/pdf_files/Map%2011th%20Edition%20Full%20Report1.pdf>
It includes the both models we're discussing, as well as a handy set of
columns corresponding to the toilets that are now beginning to be available
at 1.1gpf and 1.28gpf. Happy reading.

Reuben Deumling