Hi, tap in 50 yr old home is leaking to the extent where the water meter is now continuously running. I’ve removed the handle but the part circled in the image doesn’t budge with an adjustable wrench - unsure if I don't have enough strength but also scared about breaking something and not being able to stop the water when I turn it back on. What’s the right tool for this ? Name of the tool and pictures + instructions in your response would be helpful. Thanks heaps!
