The tube shall be marketed with warning signs and repair work shall not be done on a tube or shell until the pressure is reduced to zero. Except, however, this provision shall not apply to shells or tubes charged from a shooting valve that can be reversed and the air let out to reduce the pressure in the shell or tube to zero.
225 ILCS 705/15.08
When a compressed air tube fails to discharge, the air line leading to the tube shall be disconnected at the blow-down valve and the tube shall be dragged by means of the air line to a safe place
Laws 1953, p. 701.
Official source: Illinois General Assembly. Reproduced from public-domain Illinois statutes; confirm against the official source for the current text. Not legal advice.