I have had a new cylinder installed and we had great pressure, but now there has been a drop in pressure? Comments Off on I have had a new cylinder installed and we had great pressure, but now there has been a drop in pressure? 18 Jan 2016 Vote Up 0 Vote Down Answered Public Public Private Technical Anonymous asked January 18, 2016 Hi There, I have had a new cylinder installed and we had great pressure, but now there has been a drop in pressure? 1 answer Vote Up 0 Vote Down Public ⋅ January 19, 2016 There are a number of issues from valves around your cylinder to an external issue relating to your supply. Its best to call us and get us to come and investigate. #1 Please login or Register to Submit Answer