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Sorry to digress a little, but I would be interested in hearing 
the rationale for using any of these adaptors over a single-tank 
backplate (available from SeaTec and others).  

The adaptors cost more and all I've seen appear to be "more 
complex" and have a higher profile than a singles backplate.  
Counter-arguments I've considered and dismissed include:

  - Retain "familiarity" with doubles gear -- I rig harnesses
    exactly the same so it *is* familiar

  - Need a crotch strap D-ring for scootering -- I don't scooter

The only real negative I know of is that I can only find these
things in ABS, but I don't believe this outweighs the positives.

Are there advantages to the adaptors I've failed to consider?

- Todd


>  Date: Sun, 23 Nov 1997 12:56:43 -0500
>  To: techdiver@aquanaut.com
>  From: s_lindblom@mo*.co*.co* (Steve Lindblom)
>  Subject: Single tank backplate adaptors?
>  
>  I've been thinking it would be nice to have a single tank adaptor for my
>  backplate, and would be interested in any comments or advice - there are no
>  shops that carry them up this way, so I have never seen one in the flesh,
>  let alone had a chance to try one. Looking at the pictures, though,, I
>  don't see how they could be very rigid - most of them appear to strap the
>  tank to a \_/ shaped SS channel, then bolt this channel to the backplate.
>  But considering the size of the bolts and the contact patch, and the fact
>  that the wings and grommets are in between. it doesn't seem this would be
>  very rigid, expecially with a big tank.
>  
>  Also, someone mentioned here a  while back there was an easy way to make
>  the adaptor out of plastic pipe, but going through the archives I haven't
>  been able to find anything about it.

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