How much is too much? 20-25% moisture is considered good. 26-39% will give problems and cost you losses and 40+% is really a disaster. One usually sees the first signs of moisture underneath the nipple lines and it spreads out from there. Even before it reaches the 20% level one can see a damp wet slippery surface on the top of the litter and shortly afterwards a crust beginning to form. This occurs basically due to poor levels of management, not only by the stockman as there are other factors beyond his control that can also contribute to what is happening.