repair Mueller 3/4 inch Brass Stop and Waste Valve
I have a Mueller 3/4 inch brass stop and waste valve that feeds a fountain. The valve has begun to spray water from the top when I fill the fountain and I have to tap on the top of the valve with the tbar to stop it from leaking when I shut the valve off. I can't see the bottom of the valve without digging it up and removing the valve. Is the valve repairable and is it possible to repair the valve in place?