After the first several miles of my ride today on wet pavement on a grey, damp and cold day, any brake application sounded like my brake pads were surfaced with 40 grit sand paper. I could imagine the result of all that grit on my wheels so I did my best to complete the ride with the absolute minimum of braking. On arriving home I spent several minutes with the hose washing the grit with very special attention to the wheels and brakes. Afterwards I spent another 10 minutes with a shop rag and alcohol cleaning the rim surface. It still sounds coarse and gritty on brake application. What do I need to do, yank the brake pads?