[ninjaray]

I just installed a quarter turn shutoff value. No leaks. I proceeded to hook up the sink and as soon as I tuned in on it leaked around the knob. It doesn't have the ability to tighten the value behind the knob. Bad one air in the lines or what? The hot side is fine.

 

[Lightfoot]

are you saying it leaks around the knob of the shutoff or the faucet knob?
If it's the faucet, what kind of faucet?

 

[TheEplumber]

If there is no packing nut, replace the valve. Ugrade while you're at it

 

[ninjaray]

It's the knob of the shutoff. Only when it's on. It's not coming from the 3/8 comp on top.