Anyone using one of these? I asked my plumber about these, and he poo-poo'd the idea...dont know why. B/c my stack pipe is actually not in my basement (where I want to locate the toilet, stack on the other side of a block wall), I have to tap into a 1.25" copper drain line for the kitchen sink above. The mascerating toilet uses a 3/4" discharge line. Seems like a nice solution????