of lower fluid chamber 314 in response to the motion of piston 308 and to the compressed gas in gas chamber 330 fluid will tend to flow from remote fluid chamber 332 back to lower fluid chamber 314 across connector hose 306 to allow fluid to flow in this direction even when inertial valve 322 is in a closed position inertial valve 322 as described above includes the fluid return elements described above thus as illustrated in fig6 in response to pressurized gas in gas chamber 330 fluid in remote fluid chamber 332 will force fluid return element 338 downward into fluid return chamber 336 against the force of the fluid return spring 340 once fluid return element 338 has been forced down below fluid return port 337 fluid will flow from remote fluid chamber 332 through fluid return port 339 fluid return chamber 336 fluid return port 337 connector hose 306 and finally back into lower fluid chamber 314 this will occur until the pressure in remote fluid chamber 336 is low enough so that fluid return element 338 can be moved back into a u201c closed u201d position i e when the force of fluid return spring 340 is greater than the.