- Edited
The new part solved the issue, without changing the pipe in the end. Thanks again for the assistance here. The new part is brass and I wonder if they’d had similar problems elsewhere with the older material, mine was quite corroded I think.
I have now discovered a new issue! The steam boiler seems to be very slowly letting water bubble up under one of the pipe joints on the top as well. I think the one with the blue wire going into it. I suppose I might try to tighten up that connection’s nut? Quite awkward to get a spanner onto it though, is the wire plug easy to remove to get it out of the way?