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  1. Thread: Gradient Factors

    by JonG
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    430

    Those are interesting, any rationale behind the...

    Those are interesting, any rationale behind the choice?

    Currently 55/70 personally, but like everyone says there are shades of grey in terms of ascent rate etc.

    90/90 in back up.
  2. Think one of the Thorntons nearly blew his hand...

    Think one of the Thorntons nearly blew his hand off when o2 MAV exploded/caught fire.

    It was on CCR Explorers FB page a while back.

    Not sure what they dive but might be CCRX?

    Post and pics...
  3. Thread: Wing size

    by JonG
    Replies
    14
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    1,756

    Better not be mine, I'm just a bit slow picking...

    Better not be mine, I'm just a bit slow picking it up!
  4. Thread: Wing size

    by JonG
    Replies
    14
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    1,756

    Likewise got a 50 pound zeagle which is lovely...

    Likewise got a 50 pound zeagle which is lovely with twins but was a rolling pig in the Red Sea with a 15l steel single
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    Thanks fellahs most of my bread and butter diving...

    Thanks fellahs most of my bread and butter diving locally is mines which are 25m at most so air is fine.
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    Using a twinset as a bank

    Can anyone run me through how best to use a twinset to bank gas and decant please.

    Mainly for air dil for shallow dives and suit bottle.

    So a 3 litre and a 1.5 litre.
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    Next time the trick that usually works if you...

    Next time the trick that usually works if you have a sink mixer with mains cold and tank hot is to put your palm over outlet and open both taps.
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    Might be these: ...

    Might be these:
    ...
  9. Thread: Tech freediving

    by JonG
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    4
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    4,215

    Packing is slightly different or was when I was...

    Packing is slightly different or was when I was freediving, it was simply gulping in more air than usual until your lungs were as full as they could be and relying on the volume reduction to make...
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    Also depending on valve and location of leak it...

    Also depending on valve and location of leak it may repairable in situ, e.g. stuffing gland on gate valve can usually be tightened.
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    3,121

    Denso tape will do it or slow it for now or see...

    Denso tape will do it or slow it for now or see if fibre fix have anything that will work in the area affected
  12. Thread: Boiler question

    by JonG
    Replies
    4
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    568

    The aluminium oxide residue blocks the trap if...

    The aluminium oxide residue blocks the trap if not cleared st service or more regularly if required
  13. Thread: Boiler question

    by JonG
    Replies
    4
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    568

    The condensate is slightly acidic and will...

    The condensate is slightly acidic and will eventually wear away the material of the heat exchanger.

    The Worcester has an aluminium HEX so this will/could be accelerated due to the softer metal in...
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    I'm fine with it Graham it's not keeping me dry!...

    I'm fine with it Graham it's not keeping me dry!

    It does seem like there is a lot of confusion generally if you read the threads, FB page posts and the draft paper prepared by a us instructor.
    ...
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    https://drive.google.com/file/d/1GZk_QWOIKbWOAlBBr...

    https://drive.google.com/file/d/1GZk_QWOIKbWOAlBBrR_IGAF39zsVYfEP/view?usp=drivesdk

    Not sure if the link wil work but this was one of the docs referencing in water linearity checks
  16. Replies
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    I agree that 3% seems like a very tight tolerance...

    I agree that 3% seems like a very tight tolerance against a woolly reference point, and I have read that other's accept 5% and in 1 case 10% depending on the dive and with a reduced target set point....
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    Related thread with additional detail on this...

    Related thread with additional detail on this subject if anyone is interested.

    https://www.scubaboard.com/community/threads/cell-linearity-checks.588655/
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    Just for the avoidance of doubt, I was posting...

    Just for the avoidance of doubt, I was posting about linearity checks as opposed to current/voltage limiting checks, in case anyone gets the wrong end of the stick.
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    Trust me I don't need this level of complexity in...

    Trust me I don't need this level of complexity in my diving, too busy working on neutral buoyancy.

    I was just sense checking the seemingly different approaches between us and the US.

    So 1 last...
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    John if you get chance would you be able to read...

    John if you get chance would you be able to read the threads I linked above because I believe I have understood the content but maybe not and a second opinion from someone more learned than me would...
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    Thanks John, but playing devil's advocate and...

    Thanks John, but playing devil's advocate and siding with our American cousins for the purposes of discussion, if the cells were non linear 1.4 might not be 1.4.

    So you do your bench tests and for...
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    Why couldn't that be an o2 flush at 4m say to...

    Why couldn't that be an o2 flush at 4m say to achieve 1.4 Graham, similar to an o2 flush on the bench to 1.0?
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    Actually might have been Paul Raemakers article.

    Actually might have been Paul Raemakers article.
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    Yeah when I read the threads I went back over my...

    Yeah when I read the threads I went back over my KISS manual notes regarding the triples, Kevin Gurrs paper on sensors and Leon Scammahorns article and none referred to this test protocol.

    Not...
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    Thanks for the offer, I'm not convinced myself...

    Thanks for the offer, I'm not convinced myself given the potential for variations depending on loop humidity etc. plus the variables of physiology that have to be considered, if there is a variance...
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