I've ignored this small metal plug/pipe for the two years since we bought the house, but now I’m experiencing an issue with my combi boiler (which sits on the other side of the wall, in the kitchen) I want to rule out whether it’s anything to do with that, in case it could be linked to the problem we’re having.
It’s about 1.5 inches long, and seems hollow, with a small slit towards the end. The curious thing is it appears to have been ‘punched in’ on the underneath side - but, since I have no clue what it is, perhaps this is its normal design?
I have a condensate pipe nearby from the boiler (the black pipe you can see in the background) which drains directly into the drain in the ground below), so assuming it’s not to do with that.
Any insight at all would be much appreciated!
