After following instructions to the letter, and after approx 3 days we ordered a replacement and received one same as first.  Sane problem.   This is a 10 cup Bunn but if you pou more than 6 cups in, the filter overflows all over your cabinet with nasty mess to clean up.  We now only pour 6 cups in per brewing and it works fine.  BUT thats not what we paid for.