Quote: (Originally Posted by Ben Field)
APD reccomend a shutoff valve upstream of the GCS to make connecting/disconnecting easier...
That would help but it would also lower the maximum flow through the hose. The GCS without flowstop is rated deeper than the GCS with flow stop. But when a critical failure occurs with manifold or hoses, you could use the flowstop to quickly isolate the off-board and then switch to the off-board regulator. That would prevent major gass loss. Another "design decission" I guess.