I'm looking for advice on the best way forward with the following situation. Broke up old shower pan and found a brass drain with a lead tail piece shoved into a 1.5" hole in the concrete.

http://i.imgur.com/ipycupy.jpg

http://i.imgur.com/ZZjL6dL.jpg


I was planning on using the Schluter Kerdi system for the rebuild but I'm concerned about the drain connection. Do I need to bust up a 12"x12" section of slab so that I can get down to the trap or is there a better solution?

1960 house with mostly PVC sanitary lines although some cast does remain. Unsure of what's under this bathroom but there is a PVC cleanout just outside the window.

I was in a somewhat similar situation when I redid mine, but didn't have the loose lead piece that was just shoved in the concrete. If you'd like to see my solution (not quite the same issue as yours), https://texags.com/forums/61/topics/2754456/2

I don't know how you'll get around not cutting out the concrete to properly tie in the new drain.

I did have to cut and bust concrete.

http://i.imgur.com/gXdCh4s.jpg

Used MAPP gas to melt the leaded cast iron trap out. Can't believe we didn't have any drainage problems. It was practically full.

http://i.imgur.com/homQpDh.jpg

Used a fernco donut to get a PVC trap in place.

http://i.imgur.com/3HWVaqf.jpg

Buttoned back up.

http://i.imgur.com/VgBouMU.jpg

I'm kicking myself for not removing a little more slab to bring the drain out another inch. Using a 48x48 shower tray and the drain is a little over 25" away from the wall. Will have to mix some dry pack mortar to finish it off.

http://i.imgur.com/RrDPUzD.jpg