I have an old toe touch bathtub drain stopper that is stuck in the closed position and doesn't stop the water escaping either. I want to remove the stopper.
I removed the cap the cap by pulling on it and expected to see a slot for a flathead on the rod the cap fits on. But mine doesn't have one, what you see in the photo is a bump.
I tried twisting and pulling the rod hard with channel locks but it didn't move.
The cap says "RAPIDFIT" on the bottom of it. Here's the patent info found from the number on the cap.