I am trying to replace the cartridge for the bathroom sink. When I turn it to hot the water spouts out from under the handle. I tried using a screwdriver to open it by hand it wouldn't turn. With my drill it would only strip the screw, even with a flathead attachment. Im not sure what to do to open it at this point. Any tips?
This was installed and hasn't been touched in over 15 years.
This was installed and hasn't been touched in over 15 years.