Re: Pressure Tank Leaking Home › Forum › Ask A Member › Pressure Tank Leaking › Re: Pressure Tank Leaking chris-pReplies: 2456Topics: 153 May 22, 2018 at 12:14 am #76526 You need new o rings in your connector. Talk to Richard above about a tool for doing so. You also need to rebuild the diaphragm in your tank. There is a way to seal them around the shaft of the button so that they don’t leak.