So, last week at my high school, it was raining during one of our football games. We tried to protect the drums as much as we could by covering them up when we weren't playing them, and making sure they were bone dry when we stored them after the game.
I noticed about a couple of days later, one one small side of the head (It's a 14" clear pinstripe on my set of quads), it seems like the two ply's are starting to separate giving me a muffled tone. I know this must has something to do with the rain. How did this happen? What can I do prevent this in the future?