Cascadia wet drain not opening

They get gunked up on the inside. Corrosion can happen too but they're brass so it's not a huge deal. Just write it up and have your employer replace it.

 

The air dryer needs to be fixed.

 

You could replace it to make it work better

 

he's a company driver.

 

And he asked a question. I answered it.

Maybe we should regulate who asks questions. Then get real serious, and regulate the ones who answer em

 

You could try spraying a penetrating oil or lubricant on it and force it open, then spray some more. It might get a little around the valve and loosen up