| I was thinking of using a length of rod to align the top and bottom fittings of the sight glass. I do prefer the idea of an angled sight glass though, threded into elbows theaded into bushes on top and bottom of the boiler alongside the fitting for the regulator. That way I could get it to fit reasonably closely to the back of the boiler.
Bogstandard - I thought I recognised you from the Mamod forum! Do you have any locos or are you into stationaries or traction engines?
Regards,
Alan
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