We have been seeing the same thing. One of the issues is the grade of LP fuel that is being used now it is not as clean as it used to be and the least bit of tar build up creates the higher pressure and bends the reeds. Once solution we have found is to replace the J with the Cobra seems to hold up better.
This is ONLY to be used to report flooding, spam, advertising and problematic (harassing, abusive or crude) posts.