Got an outdoor faucet with an inside shut-off ball valve. The outdoor faucet has leaked since I got the house, but I always had more pressing issues.
Took a closer look at it tonight - it leaks from the screw-on cap at the top as soon as I turn on the shut-off valve inside, regardless if the outside faucet valve is open or closed.
- what is the top screw-on cap for?
- Do I just need to replace a gasket or similar on the bottom of the cap to stop the leak?