Ok guys, I have the new plug and seal, or O-ring. But how do I get the old one out. I want to change it this weekend while its nice out. I did a search but cant find anything that describes how to change it in detail. I think I'm going to try drilling two holes and screw in two self tapping screws. But to install, it looks like the plug will just slip in and then just have to hit it with hammer. The plug is cupped so when it gets flattened out it will expand. Does this sound correct or am I just shooting in the dark.