"Leak free" my ass

If the hydration pack bladder is leak free, why the hell did I have to line the edges with gorilla tape and have to wrap the damn thing with a zip loc bag? Of course, the bag is 6 months old, and it has been used 6 days a week, but it's always been kept inside of the hydration pack, no sharp edges to poke at it, and I never let it go dry, so where did the side leaks come from? 

That said, kudos on whoever came with the design for the hose hook up, you can actually unhook the hose without emptying the bag, which is handy as hell.