So i spun tires, rocks and dirt got caked up by the seal and broke a hole in it. When I pump air into it, It of course flows out but stops after a little while once about 3/5ths of the air is out. I know where the hole is, but i cannot see it. The bead hasn't been broken btw. So i'm going to need to take it to a shop to get it repaired. How much do you think it will cost to fix that kind of problem?...