There can't me too many pumps out there in the wild for these... are you selling all your home-builds?
Please do keep us updated on the 4 inch traction engine. I would sell a bunch of my collection for the same reason.
Nick -- Jutta in Germany e-mailed me yesterday saying he has bought some Bing spares including water pumps - he has always managed to find items for me so am sure he will on this one.
Yes, selling all items, plus several items not shown on the forum including a 1935 Bing dynamo plant - the large one.
Would like them to go to forum members so will sort asap as we are in the middle of down sizing.
The 4 inch Durham and North Yorkshire has to take priority.