QUOTE(hazelnet @ Jul 5 2016, 12:02 PM)
Up to you. I gentleman follow your time.LYN Scuba Divers Club V7.0.0
LYN Scuba Divers Club V7.0.0
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Jul 5 2016, 12:07 PM
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Senior Member
865 posts Joined: Apr 2008 From: Melaka/JB/Penang/PJ |
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Jul 5 2016, 12:09 PM
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Moderator
1,874 posts Joined: Jan 2006 From: KUL, MY |
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Jul 5 2016, 12:35 PM
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92 posts Joined: Nov 2009 |
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Jul 5 2016, 01:49 PM
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Senior Member
1,079 posts Joined: Sep 2005 From: Planet Earth |
Seriously... I do not enjoy diving in cold water! >,<'
Y so cold in water and super hot on surface!? |
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Jul 5 2016, 02:01 PM
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Junior Member
330 posts Joined: May 2010 |
QUOTE(wKkaY @ Jul 5 2016, 10:56 AM) You can still use releasable weight with a backplate e.g. weight belt / weight pockets. Or in other way, remove your bcd. Your body itself is naturally bouyant, which is why I always say, if you use a backplate, you have to be very comfortable with it, which means you're not the panicky type of diver, or still very new to diving. When I dive with no releasable weight it's an amount I know I can kick up if my bladder fails, and I also keep with me backup buoyancy (SMB). New divers, or those prone to panic, stay with normal jacket style bcd and weight belts so that others can assist you. |
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Jul 5 2016, 02:14 PM
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Senior Member
865 posts Joined: Apr 2008 From: Melaka/JB/Penang/PJ |
QUOTE(blackwhitechipsKL @ Jul 5 2016, 02:01 PM) Or in other way, remove your bcd. Your body itself is naturally bouyant, which is why I always say, if you use a backplate, you have to be very comfortable with it, which means you're not the panicky type of diver, or still very new to diving. Remove BCD on surface and hug your SMB.New divers, or those prone to panic, stay with normal jacket style bcd and weight belts so that others can assist you. I am not a panicky kind of diver but I am too chill. Which I think is kind of a problem too. haha |
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Jul 5 2016, 02:48 PM
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Junior Member
23 posts Joined: Nov 2010 From: Cyberspace West Tokyo |
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Jul 5 2016, 03:49 PM
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VIP
6,008 posts Joined: Jan 2003 |
QUOTE(blackwhitechipsKL @ Jul 5 2016, 04:01 PM) Or in other way, remove your bcd. Your body itself is naturally bouyant, which is why I always say, if you use a backplate, you have to be very comfortable with it, which means you're not the panicky type of diver, or still very new to diving. Not sure what difference it would make in such a situation if one bcd is jacket style and the other is backplate style, can you elaborate?New divers, or those prone to panic, stay with normal jacket style bcd and weight belts so that others can assist you. |
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Jul 5 2016, 03:56 PM
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Junior Member
330 posts Joined: May 2010 |
QUOTE(wKkaY @ Jul 5 2016, 03:49 PM) Not sure what difference it would make in such a situation if one bcd is jacket style and the other is backplate style, can you elaborate? almost everyone is trained and certified with a jacket BCD, thus more familiar with the usage. backplates on the other hand, requires different removal style, so your buddy may not be able to assist youalso, with most jackets, you wear a weight belt, so if you remove BCD, you will sink fast, which is why in training and exam, they teach you to remove weight belt first, so you will instantly be positive. with backplate and not wearing a weight belt, removing BCD will make you positive bouyant. |
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Jul 5 2016, 04:03 PM
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Senior Member
865 posts Joined: Apr 2008 From: Melaka/JB/Penang/PJ |
QUOTE(blackwhitechipsKL @ Jul 5 2016, 03:56 PM) almost everyone is trained and certified with a jacket BCD, thus more familiar with the usage. backplates on the other hand, requires different removal style, so your buddy may not be able to assist you Now this is incorrect. When purchasing you always take into consideration of the amount of lift the bladder in your donut gives. You should make sure it would be able to keep you afloat when fully inflated.also, with most jackets, you wear a weight belt, so if you remove BCD, you will sink fast, which is why in training and exam, they teach you to remove weight belt first, so you will instantly be positive. with backplate and not wearing a weight belt, removing BCD will make you positive bouyant. In rescue(actually in OW also) you learn that it is important to understand you buddy's gears and how to remove before even being in a dive. Plus as a diver it is good to understand different type of gears too and how to use them. That is why we always talk about gears during TT and if anyone is willing to bring it along for others to view n learn. |
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Jul 5 2016, 04:22 PM
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2 posts Joined: Jul 2013 |
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Jul 5 2016, 04:26 PM
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339 posts Joined: Mar 2016 From: Malaysia |
QUOTE(blackwhitechipsKL @ Jul 5 2016, 03:56 PM) almost everyone is trained and certified with a jacket BCD, thus more familiar with the usage. backplates on the other hand, requires different removal style, so your buddy may not be able to assist you Is positive buoyant good while emergency happen? also, with most jackets, you wear a weight belt, so if you remove BCD, you will sink fast, which is why in training and exam, they teach you to remove weight belt first, so you will instantly be positive. with backplate and not wearing a weight belt, removing BCD will make you positive bouyant. I just imagine that if I'm at positive buoyant, I will hard to control my ascend speed. It was dangerous if emergency happen and panic and just wanted to get to surface. if I'm in unconscious. then maybe.. |
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Jul 5 2016, 04:27 PM
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Junior Member
330 posts Joined: May 2010 |
QUOTE(EvanSoon @ Jul 5 2016, 04:03 PM) Now this is incorrect. When purchasing you always take into consideration of the amount of lift the bladder in your donut gives. You should make sure it would be able to keep you afloat when fully inflated. i think there are many things that influences a purchase, and checking the lift of a bladder is really, imho, one of the lowest factor for casual divers. note, i use casual divers, who is probably the biggest group of divers. also, how many actually do buddy checks and learn how to remove before dive? yes, i agree this should be a set routine and stuffs, but honestly, most don't. they'll most probably just check air is open, everything is in place and working.In rescue(actually in OW also) you learn that it is important to understand you buddy's gears and how to remove before even being in a dive. Plus as a diver it is good to understand different type of gears too and how to use them. That is why we always talk about gears during TT and if anyone is willing to bring it along for others to view n learn. what you are mentioning is probably what should be done, and what is right way of doing things, but in reality, it's not. hardcore divers do that, cos they are passionate about their equipment. I do it as well. i do comparisons of bcd versus others in the market, what features it have, what ease of use it offers, etc...but most people...i like the BCD....i had a friend who bought Oxcheq just because the bladder comes in red...no other reason |
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Jul 5 2016, 04:34 PM
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VIP
6,008 posts Joined: Jan 2003 |
QUOTE(EvanSoon @ Jul 5 2016, 06:03 PM) Now this is incorrect. When purchasing you always take into consideration of the amount of lift the bladder in your donut gives. You should make sure it would be able to keep you afloat when fully inflated. Situation I'm thinking here is if the bladder punctures or the inflator elbow breaks... then you'd lose buoyancy from it. If you have no backup buoyancy, then byebye gotta ditch it. |
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Jul 5 2016, 04:40 PM
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Junior Member
339 posts Joined: Mar 2016 From: Malaysia |
QUOTE(EvanSoon @ Jul 5 2016, 04:03 PM) Now this is incorrect. When purchasing you always take into consideration of the amount of lift the bladder in your donut gives. You should make sure it would be able to keep you afloat when fully inflated. Is better to have a dive trip? In rescue(actually in OW also) you learn that it is important to understand you buddy's gears and how to remove before even being in a dive. Plus as a diver it is good to understand different type of gears too and how to use them. That is why we always talk about gears during TT and if anyone is willing to bring it along for others to view n learn. |
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Jul 5 2016, 04:42 PM
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VIP
6,008 posts Joined: Jan 2003 |
QUOTE(blackwhitechipsKL @ Jul 5 2016, 02:29 AM) Well, no issues diving with no weights if you're really comfortable. Problem is too many new divers too confident just when the instructor tell then they are good to boost their confidence, but took it wrongly and think they're really that good. And go out and start buying all the backplate and stuffs and dive with no weights and end up having all the ballooning issue. Imagine if it's in the strong current area and bit enough dm or instructors or even rescue divers around. That's possible, although I haven't seen anyone like that. What I see more often though, are new divers who dive wayyy overweighted, having never learned proper weighting/breathing/descent/hover technique... when they could be enjoying so much more if their instructors had taught them that from the beginning This post has been edited by wKkaY: Jul 5 2016, 04:43 PM |
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Jul 5 2016, 04:43 PM
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Junior Member
330 posts Joined: May 2010 |
QUOTE(wKkaY @ Jul 5 2016, 04:34 PM) Situation I'm thinking here is if the bladder punctures or the inflator elbow breaks... then you'd lose buoyancy from it. If you have no backup buoyancy, then byebye gotta ditch it. ok, i think i understand from Evan's point of view on why he talks about bladder lift and why he disagree with removing BCD (for backplate). i guess in emergency situation, you need lift. for jackets, most are neutral or positive bouyant inherently, and air in the jacket will definitely make it positive. for backplate, it should be inherently neutral without air, although for steel plate, cos be slight negative. now, add the tanks to it, and you're about 2kg negative. so yeah, when bladder is puncture or can't be inflated, you need immediate lift, so removing BCD (for backplate) will be best, and ditching weights for Jackets will be best |
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Jul 5 2016, 04:54 PM
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Senior Member
865 posts Joined: Apr 2008 From: Melaka/JB/Penang/PJ |
QUOTE(kentmeng @ Jul 5 2016, 04:26 PM) Is positive buoyant good while emergency happen? Positive buoyancy is good when you are on the surface of the water. Not while you are underwater. When underwater we emphasis on controlled ascend.I just imagine that if I'm at positive buoyant, I will hard to control my ascend speed. It was dangerous if emergency happen and panic and just wanted to get to surface. if I'm in unconscious. then maybe.. QUOTE(blackwhitechipsKL @ Jul 5 2016, 04:27 PM) i think there are many things that influences a purchase, and checking the lift of a bladder is really, imho, one of the lowest factor for casual divers. note, i use casual divers, who is probably the biggest group of divers. also, how many actually do buddy checks and learn how to remove before dive? yes, i agree this should be a set routine and stuffs, but honestly, most don't. they'll most probably just check air is open, everything is in place and working. I consider myself a casual diver and I find that these information are important. I would prefer to provide people with these information than to just say "hey just follow what everyone does". As a group we always try to educate and share unless you know, some people's cup are already full and can't take in any advise we give.what you are mentioning is probably what should be done, and what is right way of doing things, but in reality, it's not. hardcore divers do that, cos they are passionate about their equipment. I do it as well. i do comparisons of bcd versus others in the market, what features it have, what ease of use it offers, etc...but most people...i like the BCD....i had a friend who bought Oxcheq just because the bladder comes in red...no other reason Now I know we don't really do buddy checking but I think it would be good to make a culture to check you buddy's equipment at least once. I mean I wouldn't get angry at anyone approaching me asking about my gear. Lets not go with the norm, lets go with safety. QUOTE(wKkaY @ Jul 5 2016, 04:34 PM) Situation I'm thinking here is if the bladder punctures or the inflator elbow breaks... then you'd lose buoyancy from it. If you have no backup buoyancy, then byebye gotta ditch it. Blader puncture already of course ditch, it would be dead weight. But if no puncture a BCD (like Number's cavlar Oxycheq) is a good life jacket.QUOTE(kentmeng @ Jul 5 2016, 04:40 PM) No one wanna organize. Haha |
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Jul 5 2016, 04:58 PM
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Junior Member
330 posts Joined: May 2010 |
QUOTE(EvanSoon @ Jul 5 2016, 04:54 PM) Positive buoyancy is good when you are on the surface of the water. Not while you are underwater. When underwater we emphasis on controlled ascend. agree with you, should always spread the safety message. too many ppl in the world with herd mentality, doing things without knowing why they need to do it.I consider myself a casual diver and I find that these information are important. I would prefer to provide people with these information than to just say "hey just follow what everyone does". As a group we always try to educate and share unless you know, some people's cup are already full and can't take in any advise we give. Now I know we don't really do buddy checking but I think it would be good to make a culture to check you buddy's equipment at least once. I mean I wouldn't get angry at anyone approaching me asking about my gear. Lets not go with the norm, lets go with safety. Blader puncture already of course ditch, it would be dead weight. But if no puncture a BCD (like Number's cavlar Oxycheq) is a good life jacket. No one wanna organize. Haha |
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Jul 5 2016, 04:58 PM
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VIP
6,008 posts Joined: Jan 2003 |
QUOTE(blackwhitechipsKL @ Jul 5 2016, 06:43 PM) ok, i think i understand from Evan's point of view on why he talks about bladder lift and why he disagree with removing BCD (for backplate). i guess in emergency situation, you need lift. for jackets, most are neutral or positive bouyant inherently, and air in the jacket will definitely make it positive. for backplate, it should be inherently neutral without air, although for steel plate, cos be slight negative. now, add the tanks to it, and you're about 2kg negative. Should be more than that. My aluminum BPW is -2.0kg in water with air sucked out. Regs another -1.5kg. AL80 tank between -1.0kg to +1.8kg depending how spent it is. Total -4.5kg with full tank.To offset that, there's wetsuit +x kg, body +x kg. This post has been edited by wKkaY: Jul 5 2016, 05:06 PM |
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