Ok, now I am on the same page.
There are two different types, there is a float assembly that has a foam float that rides on a rode that goes from top to bottom and then there is the assembly that has an arm that has the float ball float up a little and close off much like the back of the toilet.
There might be a dealer in your area that is open on a Saturday that might have one of the two types and could be used to replace the float assembly that has gone bad in yours... out side of that it is order and wait a few days or order and pay for next day delivery.