My spare-room sink hasn’t been used in two years: the evening I shone a torch down the plughole, I saw what the pipe had been letting through
After two years of neglect, one homeowner’s spare-room sink revealed a disturbing truth: an empty P-trap isn’t just a smell problem—it’s an open invitation for insects, rodents, and sewer gas to enter your home. What starts as forgotten plumbing becomes a genuine household hazard.