I have had that happen with a different manufacture than WM. Oddly enough, with all of the ARFs I've reviewed, it only happened once - and that was just this past summer - but it happened on a Twin engine plane.

Now I should tell you that I always add a piece of stiff tubing between the tank's plug and the clunk to prevent the clunk from going forward, and the hose split at 3 of the connections in one tank, and one in the other.