George walker explaining boiler details to Allen. Red-dot rigid staybolts are to be replaced, for various reasons. Red-circled flex staybolts are also to be replaced, almost always because of the absence of a raised head on the firebox end. Too short from the factory? George and Al Leyh, unseen inside the firebox, spent the weekend opening staybolt tell-tale holes, quite a fun job.

Photo by Ed Miller