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Aluminium cylinder

Discussion in 'General Scuba Diving' started by kevin b, Sep 18, 2019.

  1. kevin b

    kevin b Member

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    I am looking to change from a 3 litre steel pony to a 7 litre aluminium cylinder for bigger redundancy & I was wondering do i need to alter my weighting as some say yes & some say no.
     
  2. nickb

    nickb Well-Known Member

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  3. jb2cool

    jb2cool Moderator
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    Did you add/remove any weights when it came to the 3l steel? I dive with the same weighting whether I have just my twinset, the twinset and a single cylinder (ali 7 or ali 80) or even if I have the twinset and two stage cylinders.
     
  4. kevin b

    kevin b Member

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    Knocked 2kg off with pony.
     
  5. jb2cool

    jb2cool Moderator
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    I’d maybe put that back on for switching to the aluminium but monitor things and see how you go
     
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  6. Wibble

    Wibble Fish don't talk
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  7. Dave Whitlow

    Dave Whitlow Super Moderator
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    No. Weighting should be done without any cylinder that could be unclipped and handed off to someone else.

    A rear-mounted pony is not removable so could be considered as part of your weighting.
     
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  8. kevin b

    kevin b Member

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    Thanks for replies.
     
  9. Tel

    Tel Super Moderator
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    And they are all right :)

    So many variables with kit configs, where you fixed the pony vs stage etc, if you can hide behind lamposts or have the profile of a dump truck,
    the list goes on and any opinion is as likely to be right as it is wrong. The ONLY way is to do a decent buoyancy check in the chosen config.
     
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