I am wondering if someone can weigh in on the use of sanitary Ts or other types of Ts (non-comboYs) in conjunction with AAVs on small bathroom sinks. If we turn to Table 706.3, it seems clear that a sanitary T cannot be used for a horizontal to horizontal or a vertical to horizontal transition. And yet, all AAV manufacturers publish a picture like this:
This seems like a violation as the sani-T is on its back, but the use is so pervasive and being suggested by the manufacturers themselves, it makes me think I am not interpreting the code correctly. Does this not count as a transition? Is there an exception?