Thingy

Also, my tub has a built in stopper thingy; one of the metal ones that you just twist. So I can't actually look into the drain, or see in it at least. Also, I am concerned that this may prevent me from using a drain snake.

got to remove cap, and after buying a larger wrench, revealed a round plastic thingy which I have to remove to remove the ball. all you say is " remove the cap. then remove the ball." there is SOMETHING IN THE WAY which is in there very tight.

See also: Garage, Home, Water, Toilet, Kitchen