How to repressurise Flexcon expansion vessel?
Having read previous posts I have established that I need to repressurise my Flexcon 18/0.5 expansion vessel. However despite the pressure gauge showing zero and the system being cold I am unable to pump any air into the vessel. When I depress the valve no air (or water) escapes so does this mean there is a blockage in the valve or is there something else I am missing somewhere? All help appreciated. Thanks.
Dave L, February 2009