I felt like i was gonna strip it using just channel locks! Its also possible i was stoned and trying to turn it the wrong way as i sat and thought about it! Actually pretty sure i was! May also need to go get something to spray on that nut cuz quite rusty around it!
*add on*
Forgot to hit post reply so i am back! I can’t get anything on there without feeling like it was not getting a good grip and was stripping! My channel locks are adjustable and they don’t wanna stay where u set it just slips back closed and even couple times i got em to stay open i have no room to grab ahold and then turn cuz i either hit the wall, the copper pipe coming off old faucet hot and cold water lines attach to, or i am hitting the sink bowl itself! Def wish i was smarter then the faucet installer at this particular moment!
