George i had what he talking about happen one time. If was in a clear plastic container . what happened it built up so much pressure in side the seam cracked open on the bottom. There was so much pressure that had built up the jug would not sit up straight it was bowed outwards. i lost about half of A i think the clearer one. I dont know what type of jug it was George it was clear more like a jug of protal oil or safety pickle comes in.