My MF towels have gone through the wash only 20~25 times and now they completely lost their ability to absorb water. Is it because they've reached the end of their life cycle or is it because I used some of them to buff off wax? I washed them repeatedly in warm water and mild detergent so I would have thought that would remove wax embedded in the fibers. But to no avail.. man, what a waste of money :/