i WAS WONDERING IF ANY OF YOU COULD GIVE ME SOME INFO WITH INDEPENDENT TWINS. I AM INTRESTED IN GETTING INTO DOUBLES AND I HAVE TALKED WITH A FEW PEOPLE AND THEY SEEM TO LIKE THE INDEPENDENT TWINS SETUP. ANY HELP WOULD BE GREAT THANKS.
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Doc Intrepid:Independent doubles take a complex set up and make it more complex. Many would add, 'more complex than it needs to be'.
Instead of one gas supply contained in two tanks, which can be isolated, with one SPG, one inflator, etc. independent doubles require multiple regulator switches (to keep gas volume in both tanks roughly comparable), tracking psi on two SPGs, and offer a host of 'what ifs' in terms of drysuit inflation, BC inflation, CC SMB/liftbag inflation, etc.
wedivebc:Yeah real complicated. 2 spgs, drysuit inflator off 1 1st stage bcd inflator off the other for total redundancy. Change regs after 1/3 and 2/3 for a total of 2 reg switches throughout the dive.
The big what if???? If something happens to one side switch regs and abort the dive.
Independants are a very safe and simple way to go.
wedivebc:Yeah real complicated. 2 spgs, drysuit inflator off 1 1st stage bcd inflator off the other for total redundancy. Change regs after 1/3 and 2/3 for a total of 2 reg switches throughout the dive.
Depending on what sort of dive it is, e.g. whether you're in an overhead environment, whether you've staged bottles, or you've built up a deco obligation, if something happens to one side you may not have access to any of the remaining gas on that one side.wedivebc:The big what if???? If something happens to one side switch regs and abort the dive.
That's clearly your opinion and you're welcome to it. In my opinion for technical diving independent doubles are a convoluted cluster that belong in the same category as stuffing the long hose, head slates, and duct-taping your argon bottle to your tank valve.wedivebc:Independants are a very safe and simple way to go.