Triplever tub drain repair
Have a triplever style tub drain with a frozen plunger due to hard water and calcium build up, I think. Have the face plate off (eyebolt and clevis have disappeared down inside) and have been spraying in CLR against the back wall of the overflow tube. Recently rigged up a long threaded rod with a nut on the end to catch onto the bottom or crossmember of the plunger, and on the top end of the rod capped it with a piece of wood. Attached another long piece of wood (both white oak) with a hole in it onto the rod so it could slide up and hit the top piece (eg. A slide hammer). Was able to catch the plunger with the nut and pounded quit hard assumming I was "lifting" the plunger. Didn't work, plunger still frozen. Question is; should I attempt to loosen the plunger by spraying something else (such as acetic or sufluric acid) down the overflow tube. Or does someone else know something else to break that calcium seal. Thanks!