Plumbing – How to remove a stuck kitchen aerator tip

faucetkitchensplumbingsink

I recently moved into a new apartment and need to remove the aerator tip on the Moen kitchen faucet to set up the countertop dishwasher I brought with me from my previous apartment. It was missing the aerator inside and had a bunch of mineral build up to begin with. I've tried everything I found suggested for this issue online and it just won't budge. I tried soaking in vinegar and spraying both inside outside edges of the piece with WD-40 to break up the mineral build up and any rust. I tried (clockwise from above) hand twisting, a wrench, and channel lock pliers both with a cloth and without since it was missing the actual aerator to begin with so I'm not concerned about scratching but it hasn't moved at all, all that I've accomplished is stripping the metal on it. Shy of replacing the entire faucet, is there anything else I can try?

Best Answer

If you look closely, many aerators have a couple flat spots on them, that you could tighten an adjustable wrench on to. That or a strap wrench would have been my first tool. But failing that, and the lack of desire to preserve the original finish, the curved jaw vice grips pictured above should work.
The next level, replacement wise, would be to file some flat sides onto the doomed aerator and use a wrench.

Dave.