After I flush the toilet the bowl and the tank don't refill. I took the lid off the tank and when I lift the "floater" up a little everything starts to refill. It isn't the ball kind of floater. What could be wrong. It is like it doesn't know it is supposed to fill until I lift up on the floater. Any help is appericated. I know nothing about toilets and need to fix this quick as I will have a house full Saturday!