I have a tub with a broken drain stopper consisting of metal rod(s) inside the drain assembly, below the in-tub drain connected up through the overflow. As best I can tell, it looks something like the following ASCII-art diagram:
| | overflow __ | TUB | | | | | | | | | _____drain_______| | | _________________| | _________________ | | |
but perhaps it's more like:
| | overflow __ | TUB | | | | | | | | | ______drain_______| | | | _________________| | | __________________| | |
It's non-operative and I have no idea how it was ever intended to operate, but it makes the tub drain very slowly. Any idea what it's called, and/or how to fix/remove enough of it so that it does not interfere with draining?