There is a hole in the top of my condensate drain line, right there on top of the elbow as shown – Goodman furnace 90% HE. Is that supposed to be there? I noticed it today when I was back there because it was blowing enough air to move a coat hanger I had hanging on the rack above it. Lived here about a year and never noticed it. But I just had a furnace tech out checking things out, and we had a clogged air intake vent from birds, so he cut that on the inside as a temporary measure. Now we’re venting from inside. But I wonder if for some reason related to that or otherwise he cut that hole in the top of the drain line now too. Should this be there? If not, is this something harmful? It blows out air like I said.