dripping toilet cut off valve

I'm a newcomer to posting for help - But boy do I need help! I'm working on a bathroom project that seems to have no end at this point. Actually, it's a complete remodel, and the only thing in the bathroom at this time is the tub. My problem is that the tube that would normally lead up to the toilet tank is drip-drip-dripping. The shut-off valve is all the way off AND the water main for the fixture is shut off! If I turn the shut-off valve to the open position a small amount of water spurts out and the dripping then continues. How can water be coming out of a pipe if the water is turned off?

I would gladly install a new shut-off valve, if you think that would help, but I'm not sure how to do that without twisting the pipe all up. Note: in the past I've bent the pipes that attached to the water tube leading to the sink - that is another problem I'll contemplate next)

Any help you can provide would be greatly appreciated!

The main house shutoff may not seal.
If that's the case, it will continue to drip.



The toilet shutoff can be replaced if it drips.
If it's copper from the wall, a sleeve puller may be needed to remove the back nut.

If you just want to stop the water and don't want to involve yourself with replacing the stop, pick up a lav suppy with a 1/2" end and thread a 1/2" boiler valve on. That works in a temp sitiuation like this.

Thanks for your input. I'd prefer to make sure that the job is done right. All of the other water supplies are copper, so I would assume this is also copper? however, it's chrome in color. Is there a sleeve fitted over the copper pipe? You mention using a sleeve puller to remove the back nut. Where is the back nut?

As I mentioned in my first post, I have the water supplies for the vanity that currently have no shut off valve at the vanity. I would also like to install shut offs new shut offs here as well.

Thanks for any assistance you can provide.