Most of the time, the clog is a combination of hair and slime, and it is NOT at the bottom of the trap. (That's the plumbing term for that removable U-shaped pipe at the bottom.) Slime and hair collect in the drainpipe right where the stopper-lift lever intrudes into the drainpipe. We are simply going to pull out the stopper-lift lever, scrape the clog loose, and flush it on down the drain. No muss, no fuss, no wrenches, no Nasty Potions. You don't even have to SEE the foreign life form.