Originally Posted by RufusG
Originally Posted by RickyD

Sounds like you need to consider what's going on past the toilet. You most likely have sewer issues, not toilet issues.


My first thought. Gotta believe just about any toilet is less restrictive than whatever's downstream.


It might be the toilet also. When the low flush toilets first came out most of the manufactures just changed the flushing mechanism. It took some of them a while to redesign the toilets.
The TOTO rep explained it to us the same way as this article does.
http://www.hgtv.com/design/rooms/bathrooms/the-lowdown-on-low-flow-toilets

Toto, a Japanese company that started selling toilets in the U.S. in 1989, now has about a third of the $320-million U.S. toilet market. It's gotten that slice with a better trap — a trapway, not a mousetrap. Toto's toilets (such as the Bristol) have longer and less convoluted trapways than traditional toilets, and their 3-inch (vs. 2 inches) flush valve — where the water leaves the tank — makes a big difference, too.

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