[Yeah, I realize what I'm opening myself up to here....have at it.] Ok, so I have a plumbing problem. I have a seldom-used bathroom that today I discovered has a leak at the base (squish, squish, floormat). I can't fix it now and I'm going out of town tomorrow for a night, so I'd really like to drain it down to avoid coming home on Tuesday night to find the ceiling of my kitchen caved-in. So I'm looking at this thing and I realize I don't have a clue how it works, nor how to drain it, nor if I even need to! Here's an animation I found: http://home.howstuffworks.com/home-improvement/plumbing/how-to-repair-a-toilet.htm First, the obvious: Once the bowl drains below the level of the top of the siphon, how does the whole thing keep draining? Looking at my toilet, it looks like there is a lot more going on behind my toilet than is shown in the animation. It looks like there is a large pipe connecting the tank to the back of the siphon and another small one connecting the bottom of the siphon to the drain. I'm wondering if some of the flush tank water goes straight down the drain behind the siphon to work as an inductor to pull water out of the bowl. That would explain how the bowl can be emptied completely and make a glug-glug sound, breaking the siphon/induction action, and letting it fill. So how do I drain the siphon? Next, if there isn't any water around where the seal at the base unless it is in the act of being flushed, do I even need to drain the siphon or can I just leave it full? Help!