Pony Tips

[Wallowa]

Thanks folks...appreciate the input....should have mentioned or clarified that I am rigging a safety stop bottle only....not a bailout or true pony bottle....hence my questions...not trying to augment or backup my primary gas supply...

 

[happy-diver]

I carry always if I'm carrying, 50%, if you're not carrying it you may as well suck on a 100%

 

[Tassie_Rohan]

Question: For those using other than air [21%] on safety stops...

#1 What gas and % do you use?

#2 How deep do you use this gas for safety stops?

#3 How do you rig the gas bottle/reg; specifically what equipment is used [line, carry or surface supplied]?

I know all safety stops and ascents are decompression events but please no critiquing on other than air for safety stops.

Thanks!

Thanks folks...appreciate the input....should have mentioned or clarified that I am rigging a safety stop bottle only....not a bailout or true pony bottle....hence my questions...not trying to augment or backup my primary gas supply...

What would this bottle be used for? I am genuinely curious what possible event would require a 'safety stop bottle' with another gas mix.

Safety stops mean you are already clear to head to the surface. It doesn't matter what gas you breathe at your safety stop - its not going to change the safety stop count down, so just stick with air or whatever gas is being used for the dive.

I can only think of two cases where such a bottle would be warranted:

1) If a diver regularly goes out of air in the last few meters of a dive: in which case they are better off getting to surface for some lessons in gas management.

2) If a diver regularly goes into unplanned decompression, and then goes out of gas at one of the deco stops: in which case you can sling whatever their bottom gas is, as they clearly don't have the skills or knowledge to adjust their profile for different gases.

If what you mean is you want a deco station, with 100% available, then one discussion is here.

Not trying to be confrontational here: I'm just curious when you would see such a bottle being needed?

Regards
Rohan

 

[34109411]

What would this bottle be used for? I am genuinely curious what possible event would require a 'safety stop bottle' with another gas mix.

Safety stops mean you are already clear to head to the surface. It doesn't matter what gas you breathe at your safety stop - its not going to change the safety stop count down, so just stick with air or whatever gas is being used for the dive.

I can only think of two cases where such a bottle would be warranted:

1) If a diver regularly goes out of air in the last few meters of a dive: in which case they are better off getting to surface for some lessons in gas management.

2) If a diver regularly goes into unplanned decompression, and then goes out of gas at one of the deco stops: in which case you can sling whatever their bottom gas is, as they clearly don't have the skills or knowledge to adjust their profile for different gases.

If what you mean is you want a deco station, with 100% available, then one discussion is here.

Not trying to be confrontational here: I'm just curious when you would see such a bottle being needed?

Regards
Rohan

i was wondering too what was a safety stop bottle? Do you mean deco bottle perhaps?

 

[davehicks]

What would this bottle be used for? I am genuinely curious what possible event would require a 'safety stop bottle' with another gas mix.

Safety stops mean you are already clear to head to the surface. It doesn't matter what gas you breathe at your safety stop - its not going to change the safety stop count down, so just stick with air or whatever gas is being used for the dive.

I can only think of two cases where such a bottle would be warranted:

1) If a diver regularly goes out of air in the last few meters of a dive: in which case they are better off getting to surface for some lessons in gas management.

2) If a diver regularly goes into unplanned decompression, and then goes out of gas at one of the deco stops: in which case you can sling whatever their bottom gas is, as they clearly don't have the skills or knowledge to adjust their profile for different gases.

If what you mean is you want a deco station, with 100% available, then one discussion is here.

Not trying to be confrontational here: I'm just curious when you would see such a bottle being needed?

Regards
Rohan

In many locations great visibility is not a given. Even with a planned dive buddy it is very easy to become separated. So much so that we often have same ocean buddies. You drop together but dive separately.

Solo diving without a second bottle and second set of 1st & 2nd stage regulators is a bad idea. Equipment failures, burst hoses, entanglement, and other scenarios become far less stressful with a redundant gas supply. You can quickly swap to a new set of regulators, compose yourself, and have the luxury of time to think and act on next steps.

 

[Wallowa]

What would this bottle be used for? I am genuinely curious what possible event would require a 'safety stop bottle' with another gas mix.

Safety stops mean you are already clear to head to the surface. It doesn't matter what gas you breathe at your safety stop - its not going to change the safety stop count down, so just stick with air or whatever gas is being used for the dive.

I can only think of two cases where such a bottle would be warranted:

1) If a diver regularly goes out of air in the last few meters of a dive: in which case they are better off getting to surface for some lessons in gas management.

2) If a diver regularly goes into unplanned decompression, and then goes out of gas at one of the deco stops: in which case you can sling whatever their bottom gas is, as they clearly don't have the skills or knowledge to adjust their profile for different gases.

If what you mean is you want a deco station, with 100% available, then one discussion is here.

Not trying to be confrontational here: I'm just curious when you would see such a bottle being needed?

Regards
Rohan

Well different direction...my calculus and elan for using higher Pp02 at a safety stop is the linked to the same reason I do 5+ not 3 min at an "unrequired" safety stop...numerous very learned diving medical authorities [check Pilmanis/Catalina] have measured so called "silent bubbles" that are characterized as "Decompression Stress" micro-bubbles that we generate on perhaps all hyperbaric exposures. Given my long history of diving, age and deep dives on air for decades I am getting very conservative and mindful of doing no more physiological harm to my self by giving my decompression [all dives are] sufficient time and an "Oxygen Window" on shallow ascents and stops to reduce or eliminate damage done by micro bubbles and nuclei. Plus I now dive a lot above 5,000 ft ABSL .

I dive within NDL; but that does not alone eliminate silent microbubbles. Hence my decisions to use EAN and safety stop .

 

[rjack321]

Question: For those using other than air [21%] on safety stops...

#1 What gas and % do you use?

#2 How deep do you use this gas for safety stops?

#3 How do you rig the gas bottle/reg; specifically what equipment is used [line, carry or surface supplied]?

I know all safety stops and ascents are decompression events but please no critiquing on other than air for safety stops.

Thanks!

This was covered, quite extensively...
I guess you still haven't taken AN/DP or something similar? Because you're asking SB to teach you the tradeoffs between deco gases while pretending it's not deco like when we went round and round about this in 2022

Thread 'Private Boat - Emergency O2'

Apr 6, 2022

Hey Folks..... I wanted to post this in the Tech forum because I think all you Tech types will give me the best advice….. and also any proper scolding if needed!

So before I get to my point, since this is my thread….please let me provide a little history and overall philosophy. I'm just an old hippie boomer retired instructor who dives primarily solo with a 120 HP and a back mounted 19 pony up here in the PAC Northwest, BC, Neah Bay, etc. . And by solo.... I mean that my very selective pals and I agree that our plan if we get separated while hunting is that we focus on getting our limits...

• NW Dive Dawg
• Replies: 102
• Forum: Technical Diving

• 

 

[Wallowa]

This was covered, quite extensively...
I guess you still haven't taken AN/DP or something similar? Because you're asking SB to teach you the tradeoffs between deco gases while pretending it's not deco like when we went round and round about this in 2022

Thread 'Private Boat - Emergency O2'

Apr 6, 2022

Hey Folks..... I wanted to post this in the Tech forum because I think all you Tech types will give me the best advice….. and also any proper scolding if needed!

So before I get to my point, since this is my thread….please let me provide a little history and overall philosophy. I'm just an old hippie boomer retired instructor who dives primarily solo with a 120 HP and a back mounted 19 pony up here in the PAC Northwest, BC, Neah Bay, etc. . And by solo.... I mean that my very selective pals and I agree that our plan if we get separated while hunting is that we focus on getting our limits...

• NW Dive Dawg
• Replies: 102
• Forum: Technical Diving

• 

rjack...

Why I dislike snarky comments such as these, "still haven't taken"....you sir do not know the extent of my training, certifications or experience....read what I wrote....all ascents and all stops, required or discretionary are decompression....nor do you grasp what I am asking....I am not asking SB to teach me anything...I was asking for individual's input on what they personally use ...Rohan and others were civil, you are not....

Dave....I do dive solo and with only a single rig....while I appreciate the trend toward complete dive gear redundancy ... my skill set, dive profiles precludes the need for extra equipment....for me, just for me, believing that duplicate dive gear will bail me out is tantamount to relying on my non-existent dive buddy to solve a problem for me....I would never question how others configure their gear, how much they carry or how they profile their dives...just for me after decades, self-reliance and competence on dives is my safety net not my gear or a dive buddy....just my personal choice and I do not push it on others.

Guess I should have learned by now....but hope springs eternal....enter into a discussion to just exchange views and information and it inevitably degenerates into finger wagging and pontifications on the "right way" dives should be conducted.

OK out here.

DSO

 

[LI-er]

I do dive solo and with only a single rig....while I appreciate the trend toward complete dive gear redundancy ... my skill set, dive profiles precludes the need for extra equipment.

That's just ridiculous. As well as reckless. And the given reasons are pointless.

 

[chrisch]

i was wondering too what was a safety stop bottle? Do you mean deco bottle perhaps?

I also have no idea what a safety stop tank is - one option is a drop tank that is there for anyone on the safety stop that is low on gas. However that is not solo diving equipment.

A safety stop is simply a chance to off gas even if you don't need to. You most certainly do not need another tank in order to do so. There is as much gas as you can breathe just above your head.