As I huffed and puffed (and quietly swore under my breath), I had to admit defeat. This leaking tap was impossible to fix. I spent two hours on Wednesday night, after everyone else was cozy in their beds, trying to fix the bathroom sink. It had been dripping for a week and had progressed to a steady stream. I had picked up a replacement tap from my local Home Depot and got to work. The supply line was turned off, I unscrewed what I thought I had to unscrew, but this thing was in worse shape  ...