b the connecting passage 260 may be part of one or both of the primary flow path 252 a or the secondary flow path 252 b in addition the connecting passage 260 may provide an alternative path for fluidic communication between the primary chamber 258 a and the secondary chamber 258 b that is separate from one or both of the primary flow path 252 a or the secondary flow path 252 b as such a pressure from the outlet 256 may cause a pressure within the primary chamber 258 a to equalize with a pressure within the secondary chamber 258 b such equalization will be controlled by the greater of the primary biasing force of the primary biasing element 264 a or the secondary biasing force of the secondary biasing element 264 b in the case that the primary biasing force is greater than the secondary biasing force the resulting pressure in the connecting passage 260 from the outlet 256 will overcome the secondary biasing force the secondary biasing element 264 b will be thereby caused to compress moving the secondary valve member 266 b towards the secondary valve seat 268 b and closing the secondary valve system 262 b the secondary valve system 262 b and the secondary flow path 252 b will remain closed until gas flow out of the regulator 200 x through the outlet 256 results in a decrease in pressure in the secondary chamber 258 b the presence of two flow paths including the primary flow path 252 a and the secondary flow path 252 b may be particularly advantageous if flow to the primary flow path 252 a becomes blocked blockage may be caused for example by ice build up caused by use in.