Never heard of any Fixture like that in a sh. Was that app. by the plbg. Dept. I dont know what you have but the toilet fl. should have been raised about 3 or 4 ” so it is above the fl. If your floor is wood I think you have a problem, if it is conc. then you might try raising it up 3″ and water proof it and see what happens, probably have to have a new pan installed around the raised conc. Did you do this yourself are have a con. do it, it seems like a poor idea, why did you do it in first place. Let me know.