Worker Uncovers The Weird Reason Behind An Unusual Sound In An Old Couple’s House After 13 Years

Checking The Vent

The contractors began their inspection of the vent. The sound is the loudest in their living room, as much as they could tell. So the duo removed the opening to the air vent in the living room and managed to look inside. From the looks of it, there was nothing unusual about the vent. But that is when they noticed another opening of the vent which was connected with the garage.