I go to the place and the renter tells me that she thinks that the system needs gas. (What everyone says, because well.... that's what their neighbor told them)
Anyway.... I look down the hall at the filter grill and said. I'll be right back. I went to the truck and got a pair of pliers. There was no way I was touching this. I'd rather kiss a COVID 19 whore.
And here's the coil.
And the greatest lie ever told to the a/c tech..... I changed the filter every month.