When a mop nib is blown out dont toss it. You can dig out the leftover material and replace it with felt. Put some fabric glue around inside that lip (You'll know what I'm talking about if you remove the old stuff). Cut a piece of felt slightly larger than the diameter of the nib and tuck that badboy in. a litttle glue along the endeg and your set. had the same montana crusher for 5 years now.