I am trying to set up the unloader valve bypass to my buffer tank but cannot get the lower fitting off so that I can put a plug in it. I am afraid I’ve started to strip the fitting down trying to unscrew it. Ive seen suggestions of penetrating oils or torch heating the fitting.
Any help with how to get this off would be appreciated!
At this point, Use some vise grips.
Pipe wrench!!! Perfect for this situation
A pipe wrench is the best. I use it for everything now. I would add heat and it will come loose.
Thank you guys for your help, I had to get some additional tools but unfortunately it’s in there really good and I wasn’t able to get it out before stripping it completely.
I guess I will try leaving the nipple fitting in place but put a short hose with a cap on it for now until I can replace the whole inlet?
I’m completely stumped and pretty embarrassed.
A pipe wrench can get it even if it’s completely rounded over. Pipe wrenches are made for the shape. Another option is trying to catch the corner with a chisel and hammer and turning it. You have to do it at an angle that will turn the fitting though.
Might be a dump question on my part but are you sure you’re turning it the right way?
Not sure if you tried using a crescent wrench at first but wrenches are the way to go. They’ll fit tighter and normally prevent a fitting, nut, or bolt from being stripped.
No reason to be embarrassed. I guarantee that if you stick a 10" pipe wrench on there, with the open jaws facing you, pulling upwards, that thing will come free.
I would think that the hose fitting is probably working against you too, might free it up if you cut that off
I would file down 2 sides and tighten a vice grip on it with all your might. It can’t not come off.
Rather than a heat torch, try a two-speed heat gun and use the lowest heat first.
I was able to file the sides down allowing my pipe wrench to finally get a good grip and I got it out. Thank you all so much. I was definitely doubting if I was even turning it the right way 
I also disconnected the hose (which I should have done before) so maybe that helped ensure the system wasn’t pressurized. I started by using a cheap set of locking pliers the kind that are 3 pairs/sizes for $20 and I think that made it worse by scraping the brass off.
Lessons learned:
Pipe wrench good
Use better/ the right tools
Brass is a soft metal
