Ahhhh, and in my part of Southern California, we are very limited when we purchase a new toilet. It must only use a few gallons of water, which is not always sufficient. So we spent a lot of $$ and have what we like to call our "Turbo Toilet". It flushes with compressed air or something, and if we don't warn guests, they get a little bit freaked out :-)

As to the above 3 or 4 inch outlet, wouldn't the one w/ the smaller hole use less water? Wouldn't that be better in a drought? Last ime I went to the hardware store, the Q was 1 3/4 inches or 1 5/8. . .