This pipe under my sink just recently started leaking at a very slow drip. The knob doesn't budge either way, at least not with my hand.
Best way to address it? I was thinking I could simply get some plumbers tape and maybe a cap to just close it up? Or is that not good practice?
If a cap would work, can anyone eyeball what size that it is so I can find it online or ask for it at the store?