We would like to use the Caroma Somerton Wall Hung toilet bowl in our upcoming renovation but cannot find information on the trapway size on the Caroma USA website. The floor drain toilets all mention the Caroma Signature trapway; 2X larger than industry standard, but the wall toilets don't mention the Caroma Signature trapway. Also, are the Caroma floor drain toilets still a 4" trapway? After reading the multiple discussions on this website about the Caroma Sydney toilets handling large, hard BM's without clogging I would sure like to use them. I am hoping the wall mount styles also have the large trapway.