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**neilh** · May 10th, 2007, 09:20 AM

Quote: (Originally Posted by MonkSeal)

IMO there's no need for 2 1st stages in single tank diving.

Unless you have an H-valve

But the original post doesn't specify whether the question is for a single tank or not...

May 10th, 2007, 09:20 AM	#9 (permalink)
neilh(Offline) Haemoglobin on the bus... Join Date: Nov 2005 Location: Barnsley, UK Posts: 1,914	Quote: (Originally Posted by MonkSeal) IMO there's no need for 2 1st stages in single tank diving. Unless you have an H-valve But the original post doesn't specify whether the question is for a single tank or not...