Its a pity the schimel website seems to be shut down, the family in California were making a good effort of supplying parts, and a very nice booklet of the history. In UK we have Lawrie Amatruda who has worked on over 100 of these and knows about the four variations on the valve unit. Would love to see these produced again using new technology and materials available today. The method of releasing the CO2 without the standard type valves on firing gives a satisfying crack, producing good power.

Baz