I've been shopping for toilets for the new home I'm building, and every one I look at has a feature I've never noticed before, but it has got to be designed by someone who doesn't clean toilets, not even the outside. I'm referring to the outside lower back of the toilet which houses the exit pipe. Sorry, I don't know the lingo. It looks like someone's colon and of course is shaped to carry solids. Please let me know what new brands and models don't have this crazy feature. Thanks.