Just did the last trimix dive before the 100. Did 91 today! AMAZING the view of the entire arch. From the 55ish ceiling arch dive, it doesn't look that big.
One question, why do you actually decompress at 6m with 100%O2? Isn't it dangerous to leave the partial pressure at 1.6 as standard? You should never go higher than 6m because of the decompression, which is why you should stay a little lower at 6.5-7m, right? The partial pressure there is then 1.7, which according to the CNS table you can only withstand for 10 minutes. If you accidentally sink 1m, you quickly reach 1.8, which you can only withstand for 1-2 minutes. Wouldn't it be smarter to decompress with 80%O2 in the upper stops to be on the safe side?
@@strolchtv86 one common standard is to use x100. The limitation is that if you are at 6 m / 20 you are at 1.6 ppo2. Most agencies limit the ppo2 to 1.6 regardless of the depth. Speaking from personal experience you don’t want to exceed 1.6 by going deeper. In my case, I was fortunate to have exhibited symptoms that I recognized before convulsing. So, with x100, I will not go deeper than 6 m / 20 ft. Most people cannot stay exactly at any depth, so you still have to be careful. Other divers prefer to use x80. That does give you more margin of error in your depth with respect to cns o2 toxicity. It also allows you to switch at 9 m / 30 feet. However, getting x80 may be more logistically difficult to acquire.
Most of the time, we descend on the inside go thru the arch and then come back thru. The first time I did it, I ascended on the outside which is much more interesting. However, the dive operators generally don't like that because they can't see that you are safe. The only other time I ascended on the outside was when there was a strong current outbound and we could not swim back thru.
That was very interesting. And chilling. At 6:12 on the left there's the strange looking plant type one can see on the Yuri Lipski dive video, when he passed by at time stamp 17:08:57 (in his video) as he tumbled further down to his death. Maybe it's the exact same plant :o
@@mahmoodalkershi5137 Yea, I also thought that looks like a ribcage, but I'm not sure. Anyways, Yuri Lipski's body was recovered already the next day and buried regularly, so it's not him.
Lets respect the achievement of these divers, and most of all keep an open mind, some divers go for the challenge and to be at places most people will never be…
Just did the last trimix dive before the 100. Did 91 today! AMAZING the view of the entire arch. From the 55ish ceiling arch dive, it doesn't look that big.
P.S.
I used 12/55 as a bottom, 20/35 as travel, plus 50% and 100%. Perfect dive.
@@ubaldo_ubi_purchiazza5109 What dive shop did you use?
@@divezonescuba I am working with Red Sea Relax...
One question, why do you actually decompress at 6m with 100%O2? Isn't it dangerous to leave the partial pressure at 1.6 as standard? You should never go higher than 6m because of the decompression, which is why you should stay a little lower at 6.5-7m, right? The partial pressure there is then 1.7, which according to the CNS table you can only withstand for 10 minutes. If you accidentally sink 1m, you quickly reach 1.8, which you can only withstand for 1-2 minutes. Wouldn't it be smarter to decompress with 80%O2 in the upper stops to be on the safe side?
@@strolchtv86 one common standard is to use x100. The limitation is that if you are at 6 m / 20 you are at 1.6 ppo2. Most agencies limit the ppo2 to 1.6 regardless of the depth. Speaking from personal experience you don’t want to exceed 1.6 by going deeper. In my case, I was fortunate to have exhibited symptoms that I recognized before convulsing. So, with x100, I will not go deeper than 6 m / 20 ft. Most people cannot stay exactly at any depth, so you still have to be careful. Other divers prefer to use x80. That does give you more margin of error in your depth with respect to cns o2 toxicity. It also allows you to switch at 9 m / 30 feet. However, getting x80 may be more logistically difficult to acquire.
Hi, cool dive.
Did you cross the arch and ascended on the other side ?
That's the 55ish mt. dive, close to the ceiling. The bottom is double the depth.
Most of the time, we descend on the inside go thru the arch and then come back thru. The first time I did it, I ascended on the outside which is much more interesting. However, the dive operators generally don't like that because they can't see that you are safe. The only other time I ascended on the outside was when there was a strong current outbound and we could not swim back thru.
That was very interesting. And chilling. At 6:12 on the left there's the strange looking plant type one can see on the Yuri Lipski dive video, when he passed by at time stamp 17:08:57 (in his video) as he tumbled further down to his death. Maybe it's the exact same plant :o
True ...and ther is a skeleton in 7:05 in this video, maybe it's the body
@@mahmoodalkershi5137 Yea, I also thought that looks like a ribcage, but I'm not sure. Anyways, Yuri Lipski's body was recovered already the next day and buried regularly, so it's not him.
It was recovered the next day
Was that a skeleton!!!! 😮 7:05
Well it is considered one the deadliest dive sites in the world. And most of the time bodies arent recovered.
$750 (plus airfare and accommodation) to see nothing 😂 😂 😂
I'd like to go see nothing...
@@LarsDennert Have at it; for me, I'd rather spend $30 a tank and see incredible marine life.
Lets respect the achievement of these divers, and most of all keep an open mind, some divers go for the challenge and to be at places most people will never be…