Sun Tel GK

[whordley]

Hole for molten metal 4

[JoolsTwo]

I think we have ageed on Sump for this one.

[whordley]

Thanks. I thought sump but was not sure

[Lie-in King]

May I?.. My Chambers edition's no help, but OED (Online) gives -

sump - � Metallurgy. A pit of stone or metal at a furnace to collect the metal at the first fusion�"The metal is tapped off into an iron sump."

[JoolsTwo]

Thanks Lie-in-King - I've been searching for ages just to justify - Sump - with no real breakthrough. That sounds like the answer. Jools