Hi everyone. I'm just wondering if anyone knows how to tell if an isub apex tank is cracked? Those familiar with the tank know that it has an inner tank with an outer layer and it doesn't come apart so it's next to impossible to get a good look at the inner tank. I dropped my mod today and am noticing that the outer layer has become quite foggy and although it's not leaking I'm all of a sudden getting a lot of spit back. Any help/info on this would be greatly appreciated.