Thanks for you comments Brian,
I am currently away from home but the rod I think is 3/16 or even 1/8 ! barely larger than the cable!
I will take some dimensions and post a picture in a few days. I wondered if it was from a car handbrake adapted, I think Ive seen something similar but larger in this arena.
Have collapsed sewer in front garden ( my responsibility) and 2-3 weeks of excavation destroring walls and paths in the next few days….all I did was go in the workshop for a little light relief!!
