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Thread: Pony Setup

  1. #1
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    Pony Setup

    Hi,

    Looking for a pony setup with Apeks regs - currently have a 3ltr steel on hand but out of test. Some have recommended buying an Ali40 and going from there.. I aim to side sling the cylinder.

    Does anyone have a pony regulator setup or preferably an Ali40 with one?

    Ta - fresh out of OW so not going deep just yet...!
    Last edited by Tango Charlie; 18-12-2018 at 02:32 PM.

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    I have a yellow atx40, PM if interested.

    You mention some have suggested an ali 40 and you currently have a 3ltr steel.

    To determine size for yourself look at the diving you are doing, looking to do in near future and then give yourself an OOG situation at the deepest part (assuming no deco) then make sure your pony gives you enough gas to get you to the surface. If not you may want to consider a bigger tank.

    Don't want to teach you to suck eggs but you mentioned you had just finished ow, so as a guide:

    - sit in your chair at home and breathe from a cylinder for 5 minutes check how many bar you consume from 3 ltr cylinder.

    - say you use 40 bar, then your 3 ltr cylinder 40 bar gives 120 litres, divide that by the 5 minutes you breathed it for gives you 24 litres. So you would be consuming 24 litres per minute.

    - remember that your consumption will increase with depth, double at 10m, 3 times at 20m and so on. So at 20m you will use 72 ltr per minute.

    - say it takes you 3 minutes to ascend from 20 (1 metre per minute ascent plus 1 minute of faffing with smb and or getting head round oog situation).

    - the average depth between 20m and surface is 10m. So your 24 ltr consumption is going to be doubled due to depth to 48 ltr, you will be breathing it for 3 minutes, so you need 144 ltr of gas.

    - 3ltr steel filled to 220bar is 3 220 = 660 litres available. Ie you would not need an ali 40 by any means in this example. Just repeat based on the dive you are going to do and then you will jump in knowing what your pony is capable of assisting you with.

    Usual caveats of don't rely on a bloke on the internet to ensure you have enough gas, check your gas consumption as you dive as well because you will likely use more in real world diving than sat on sofa, your consumption is also likely to increase if you have an oog emergency due to stress. Consider putting a spare inflation hose on the pony as you will then have the ability to inflate bcd at the surface and control bouyancy.

    That is a bit whistle stop but if you have an questions more than happy to help.

    Matt

  3. #3
    Old but keen Mark Chase's Avatar
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    Last time I checked OW was 18m max? So 2mins to the surface?

    At a 50 SAC thats what 250 -300ltrs required? A 3ltr is 705ltrs?


    A 3ltr is fine for OW but for AOW 30m you need to consider your SAC so a Al40 could be useful

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    Established WTF Member Spirit of Guernsey's Avatar
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    Think of the diving that you will be doing in the future. You could quickly grow out of a 3ltr, but an AL40 will be of use for most future progressions.
    There are four varieties in society: the lovers, the ambitious, observers and fools. The fools are the happiest.
    Hippolyte Taine French critic and historian (1828-93)

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    Old but keen Mark Chase's Avatar
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    But 3ltrs fit on CCR dont they

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    Quote Originally Posted by Mark Chase View Post
    But 3ltrs fit on CCR dont they

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    Coastal Member dwhitlow's Avatar
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    Quote Originally Posted by Mark Chase View Post
    But 3ltrs fit on CCR dont they
    Quote Originally Posted by M-J-J View Post
    You may laugh. My old pony cylinder had a change of valve and is now filled with diluent

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    Established WTF Member Spirit of Guernsey's Avatar
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    But an AL40 is a good stage if you do deeper OC then becomes a bail out if you go to CCR.
    There are four varieties in society: the lovers, the ambitious, observers and fools. The fools are the happiest.
    Hippolyte Taine French critic and historian (1828-93)

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    You lot are a set of bastards.

    You should all be encouraging people to go buy new ponies so I can buy them cheap later once they're a few years out of test.

  10. #10
    Coastal Member dwhitlow's Avatar
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    Quote Originally Posted by Spirit of Guernsey View Post
    But an AL40 is a good stage if you do deeper OC then becomes a bail out if you go to CCR.
    Very true. Also, if in the future there is a move to deco diving, the AL40 is the most pleasing stage/bailout cylinder to use.

    Both are good answers.


 
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