Originally Posted by Rip Tide
The heavy mono is not likely to deteriorate much, but because you have it nail knotted on your line is why it's important to change it.
The nail knot stresses the line coating to the point where the knot can fail and at the very least a new knot will help the keep the line core drier and floating better.
What he said.
When wealth is lost, nothing is lost; when health is lost, something is lost; when character is lost, all is lost. - Billy Graham"