Hi all,
Just got my copy of the May/June issue of the Live Steam & Outdoor Railroading magazine, and the cover story is a set of plans and build article (continued in next issue too) for a duplex steam powered boiler water pump. Looks quite interesting - I recall last year there was some discussions here about how they worked and some had built one, this one is built from bar stock using o-rings and ceramic balls for the valves. For those (like me) with a pump on their want-to-build-someday list, worth checking out!
Chris
