For ages, there have been three original pipes painted and ready to fit to feed sand from the four sandboxes to the rails; however, the fourth one had disappeared some time ago or so I thought. I'd searched and searched, convinced that the fourth one existed, but finally resigned myself to having to make a new one, flange and all.
Eventually, on close examination of the sand box itself, I found that there was a flange still in place underneath with clear evidence of a pipe having been broken off from it.
So I'd been wrong; the fourth one hadn't existed after all.
|New Sand pipe (1)|
|New Sand pipe (2)|
Finally it was screwed into the threaded flange still attached to 7109. (28 tons of solid metal certainly held the flange tightly in place!).
There's much more to come on sanding gear, particularly working out how the levers need to operate the four boxes.