There is a flaw with the gasket/tower of the toilet so it constantly leaks into the bowl/refills.  

i have reseated the gasket, twisted the tower and adjusted the float nothing helps.  unfortunately i didnt have a choice since this is the only one that was in stock and short enough to fit in my height constraints.  i need another one but i will look for a different brand that will fit under my counter.  1 week old toilet, should have just fixed ole faithful...