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  1. Replies
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    The threads are inside the O ring so you should...

    The threads are inside the O ring so you should never see corrosion in that area unless you've been filling them with contaminated wet gas or let them get wet inside by other means.

    I doubt...
  2. Replies
    25
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    1,507

    I used to use Seac GP100 "4x4" fins... fuck knows...

    I used to use Seac GP100 "4x4" fins... fuck knows what they've got to do with diff locks and mud but they were stiffer and heavier than the normal ones and came with spring straps.
    They were great...
  3. Replies
    25
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    970

    I think you are wasting your money for topping...

    I think you are wasting your money for topping off a twin set, I'd use a (iirc) X size industrial gas bottle (20 litre or so)
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    970

    "CTS Carbon Fiber Scuba cylinders WARNING. I use...

    "CTS Carbon Fiber Scuba cylinders WARNING. I use carbon cylinders with metal parts in aluminium alloy highly recommended in a saline environment given the corrosion found after a few hours of use....
  5. Replies
    55
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    2,438

    Think you can get a Keller digi gauge cheaper...

    Think you can get a Keller digi gauge cheaper than the narked at 90 ones

    Think our gauges we use for pressure testing pump housings cost us 40 or so to get calibrated
  6. Replies
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    970

    How do you think the fire service get theirs...

    How do you think the fire service get theirs tested?

    Talk to C and R testing in Halifax I think he tests fire service ones, you will probably be able to buy them either from Sabre or Draeger

    ...
  7. Replies
    25
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    970

    I've got 3 ex fire service carbon wrap ones...

    I've got 3 ex fire service carbon wrap ones
    They've been sat in a pile in the yard outdoors empty and past their life span so I would seriously not recommend filling them as they are, however might...
  8. Replies
    55
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    2,438

    Think I'd need a thicker undersuit if I was...

    Think I'd need a thicker undersuit if I was diving below the critical temperature of nitrogen
  9. Replies
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    2,438

    Ok then, what's your take on how to model gas...

    Ok then, what's your take on how to model gas equalising between two tanks?
    It seems obvious from the fact that a blending valve gets ice on it, that this will cause a heat flux into the gas. A...
  10. Replies
    36
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    6,215

    I find merino wool to be really nice and...

    I find merino wool to be really nice and effective, possibly due to sweat wicking properties. Also helpfully stink resistant

    My usual attire:
    merino underclothes
    santi heated vest (I don't...
  11. Replies
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    2,438

    Yeah exactly, it's a bollocks "rule" for the hard...

    Yeah exactly, it's a bollocks "rule" for the hard of thinking.



    Is it actually changing the system into a fridge? The gas gets exceptionally cold coming out of the needle valve (pressure drop...
  12. Replies
    24
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    1,373

    bypass unseating doesn't happen with a needle...

    bypass unseating doesn't happen with a needle valve
  13. Replies
    97
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    4,108

    There was a shit load of talk about a deal, and...

    There was a shit load of talk about a deal, and about future relationships with the EU, and the staggering complexity of unraveling 30 years of systems that developed in parallel... but the thick...
  14. Replies
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    4,108

    I've read that as well but it was on a repost...

    I've read that as well but it was on a repost from a total fuckwit on facebook so I don't believe it, one of those that was well backed up by "my sisters husbands cousins mate is a microbiologist and...
  15. Replies
    55
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    2,438

    Also bit of thinking about the job before opening...

    Also bit of thinking about the job before opening any valves.
    Biggest risk is in rapid transient pressures like charging a whip rapidly into a dead headed line, rather than the speed of filling the...
  16. Replies
    24
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    1,373

    Sure that can happen on eccr whether you have...

    Sure that can happen on eccr whether you have valve open one turn or all the way
  17. Replies
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    3,507

    home brew sterilisers a lot are chlorine based...

    home brew sterilisers a lot are chlorine based (VWP most common)
    a lot of others percarbonate based (sold as no rinse sanitiser)
    or sulphite based (campden tablets)


    I just use Virkon.
    It...
  18. Never seen the point of this soap on a rope...

    Never seen the point of this soap on a rope bollox myself.
    Change to right gas at right time and roll the dice as to whether HPNS kills you.

    Meanwhile someone 100m deeper is doing a full shift...
  19. It would be a fucking long one if it included the...

    It would be a fucking long one if it included the eleventeen billion hours of manned and unmanned testing that apparently happened (without finding the critical faults that the alpha testers...
  20. Replies
    40
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    3,342

    I pay about 12 a month rental and the gas is...

    I pay about 12 a month rental and the gas is about 10 230bar 50l
    (energas)

    66 for 20l 230bar seems ridiculous
  21. Replies
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    3,342

    check the bottle size and pressure their argons...

    check the bottle size and pressure their argons and argon mix are only 150 bar or something, might work out expensive
  22. Replies
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    278

    WANTED 1/2" UNF port plugs

    couple of plugs as title if anyone got some kicking about unused

    Cheers
  23. Replies
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    2,889

    You even reading your own pdfs man? "Figure...

    You even reading your own pdfs man?

    "Figure 2-1: IDA-71 inhale valve.
    The valve has an opening pressure
    of around 1mbar, and provides an
    extremely low work of breathing."
  24. Replies
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    2,889

    for the QCs that was a long winded non answer to...

    for the QCs that was a long winded non answer to a straightforward question. I'm not really that inclined to change just now but feel free to update the thread when they get stuck on the web shop...
  25. Still with the bold claims of end tidal ppo2...

    Still with the bold claims of end tidal ppo2 monitoring must be going on 15 years now




    I have been trying to get my head around why the YBOD invented this (IMO) bullshit procedure of...
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