Welding cast iron
In message
,
harry writes
There are min. two gauge glasses on ever boiler for redundancy/
camparison reasons
They are all fitted with safety glasses too.
Agreed on the Ell of a mess, but on Gods Wonderful Railway, there was
only one sight glass and two small cocks to open so the top one would
blow a little steam and the bottom one would dribble water.
--
Clive
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