Thanks for the advice! I just purchased my 2" PVC for the bell part of my siphon. I still have no idea how I am going to cut notches out of the bottom like I see a lot of people do. Do you think I could just drill a few holes in the bottom to compensate for that, which will allow the water in there?

As for the drain guard, I like that idea. I will probably do that, since I cannot find 3" PVC anywhere.