Do I need to replace my whole cylinder if just a valve is leaking? Comments Off on Do I need to replace my whole cylinder if just a valve is leaking? 18 Jan 2016 Vote Up 0 Vote Down Answered Public Public Private Technical Anonymous asked January 18, 2016 Hi, Do I need to replace my whole cylinder if just a valve is leaking? 1 answer Vote Up 0 Vote Down Public ⋅ January 20, 2016 No, if you have a leak on one valve we can just repair that. #1 Please login or Register to Submit Answer