I know this is a while ago, but did you have any luck with dealing with Sales@Kongs, I'm currently in a disputes tribunal hearing and they have informed me they have never had any problems with their tanks breaking without cause, i.e. being bumped etc, they are saying I bumped it with a vacuum cleaner. I think I would have remembered that and I don't vacuum at 6.30am. :roll: I get the drift that they are happy to replace, but I'm thinking they shouldn't be breaking in the first place, it is so stressful.