wye fitting with back to back toilets

Hi. I just bought a Toto ultramax and would like to put in another that backs up to this one. The installation instructions say the the G-Max and Power Gravity flushing stystems are not specified for back-to-back installations. The only means is when the toilet drain connections incorporate a WYE fitting. How would I know if I already have this and if not, how is it installed? Does the floor need to be torn up or what? Thanks!

truthseekerz said:

How would I know if I already have this and if not, how is it installed? Does the floor need to be torn up or what? Thanks!

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The only way to find out what kind of fitting you have, without taring out the walls and/or floor, is a drain video camera