heliair vs trimix

gathan · 17th August 2007, 01:53

Quote: (Originally Posted by sensor330)

I have the same thoughts. Mixing gas isn't rocket science. I'm not a certified gas blender and I have no intention of paying any money for such a course.

Scott

You rebel!

Andre

JS1scuba · 17th August 2007, 02:58

Quote: (Originally Posted by sensor330)

I have the same thoughts. Mixing gas isn't rocket science. I'm not a certified gas blender and I have no intention of paying any money for such a course.

Scott

It's not rocket science BUT it can be screwed up pretty quickly. Learning Gas Mixing and Oxygen Service from a qualified instructor who shows up with all the right tools and materials is invaluable. What you can learn in 12 hours can save you 100. I'm not talking about the cocktail napkin gas mixing course that was taught in San Francisco during tek95. Im talking about working with an instructor who has significant experience and someone who you can learn from.

Cheers

sensor330 · 17th August 2007, 04:20

Quote: (Originally Posted by JS1scuba)

It's not rocket science BUT it can be screwed up pretty quickly. Learning Gas Mixing and Oxygen Service from a qualified instructor who shows up with all the right tools and materials is invaluable. What you can learn in 12 hours can save you 100. I'm not talking about the cocktail napkin gas mixing course that was taught in San Francisco during tek95. Im talking about working with an instructor who has significant experience and someone who you can learn from.

Cheers

I've been mixing for a few years now and have very rarely screwed up my mix. All I'm saying is my money is better spent else where.

**JPJones** · 17th August 2007, 04:33

Quote: (Originally Posted by JS1scuba)

It's not rocket science BUT it can be screwed up pretty quickly. Learning Gas Mixing and Oxygen Service from a qualified instructor who shows up with all the right tools and materials is invaluable. What you can learn in 12 hours can save you 100. I'm not talking about the cocktail napkin gas mixing course that was taught in San Francisco during tek95. Im talking about working with an instructor who has significant experience and someone who you can learn from.

Cheers

Scott knows what he is doing and did both CCR Cave and CCR Trimix with me and knows more than most shops I have been around. Thats not saying that everybody else that makes home brew does.

I use heliair because I'm lazy and on a rebreather for diluent it fits the bill. Now for bailout I take the time to blend.

**wedivebc** · 17th August 2007, 12:46

Quote: (Originally Posted by JPJones)

Scott knows what he is doing and did both CCR Cave and CCR Trimix with me and knows more than most shops I have been around. Thats not saying that everybody else that makes home brew does.

I use heliair because I'm lazy and on a rebreather for diluent it fits the bill. Now for bailout I take the time to blend.

Thanks John, I was going to jump in there too but I know if told anyone what Scott does for a living he would have to kill them

**Dave Sutton** · 17th August 2007, 13:05

Quote: (Originally Posted by JS1scuba)

Im talking about working with an instructor who has significant experience and someone who you can learn from.

Cheers

All five of them.....

Seriously:

The issue is to figure out who *knows* what he's talking about, as opposed to who "holds a card". For the novitate that's sometimes a hard call.

I've got a LDS who mixes trimix... their "blender" (a local "expert") has a laptop with a spreadsheet and knows exactly how to plug in the numbers and that's about it. The quality of the mixes... vary. Could he "teach" this? Sure... but what are you going to learn?

With that said, watching someone who knows his shit is a very worthwhile experience. Mixing is labor intensive (took me a day to do the gas for our Doria trip... and that was only for 5 Rebreather divers). My advice is that since people are basically lazy, make friends with a good mixing guy and offer to "help". He'll likely be happy to let you, as labor is always appreciated, and you'll get to learn hands-on. After that 275th bottle is filled, you'll be pretty good... (Good and *sore* that is...)

The other thing is to learn all of the various methods. Learning partial pressure blending is one thing. Learning continuous mixing is another.... and learning to use preblended Nitrox as a component in trimix is yet another. Many places do just one type. You might need to move around a little to get the full spectrum.

Joel is dead on, as usual: You *can* learn lots by apprenticing to someone who's good at it. He teaches it... go see him and you'll know who you are learning from. Dive the B-29 while you're at it!

Dave

Janos · 17th August 2007, 13:59

I hate hypoxic dils so I have a J of 18/52 in my shed.

Nice and easy to decant from.

Janos

JonORunde · 17th August 2007, 16:32

Another vote for keeping a bottle or two of HP premixed dil in the garage.
We get 15liter / 300bar bottles, that can fill a 3liter to 230bars a lot of times before we need to fire up (no pun intended) the booster.
Keeping two bottles (or more of course) as a cascade, could keep you with dil for a while, and the blending-part is only done a few times a year.

But still 10/50 is _really_ quick and easy to make... -plus I don't have to flush the entire rebreather to get ppO2 down when having a high-ppO2-warning at depth...

Yeah, and lazyness

jon o

**Fun Under Pressure** · 17th August 2007, 19:20

Quote: (Originally Posted by sensor330)

I have the same thoughts. Mixing gas isn't rocket science. I'm not a certified gas blender and I have no intention of paying any money for such a course.

Scott

Yep, i think when i mixed my gases in calmly so my failures are low. And an END of 40 meters is to DEEP for me. When i dive with TMX i dive a max. END of 30 meters because I have 2 children.

Cheers Markku

Explorer · 17th August 2007, 19:23

Quote: (Originally Posted by Fun Under Pressure)

Yep, i think when i mixed my gases in calmly so my failures are low. And an END of 40 meters is to DEEP for me. When i dive with TMX i dive a max. END of 30 meters because I have 2 children.

Cheers Markku

Good for you Markku.

17th August 2007, 01:53	#11 (permalink)
gathan MixedGas Current Rebreather/s: Classic Kiss Other SCR Other Rebreather/s: Other SCR Join Date: Sep 2005 Location: Tottenham, Ontario, Canada Posts: 202	Re: heliair vs trimix Quote: (Originally Posted by sensor330) I have the same thoughts. Mixing gas isn't rocket science. I'm not a certified gas blender and I have no intention of paying any money for such a course. Scott You rebel! Andre
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17th August 2007, 02:58	#12 (permalink)
JS1scuba RebreatherWorld Sponsor Current Rebreather/s: Classic Kiss Other Rebreather/s: Classic Kiss MK 15.X Join Date: Oct 2005 Location: Lake Havasu City, AZ - USA Posts: 422	Re: heliair vs trimix Quote: (Originally Posted by sensor330) I have the same thoughts. Mixing gas isn't rocket science. I'm not a certified gas blender and I have no intention of paying any money for such a course. Scott It's not rocket science BUT it can be screwed up pretty quickly. Learning Gas Mixing and Oxygen Service from a qualified instructor who shows up with all the right tools and materials is invaluable. What you can learn in 12 hours can save you 100. I'm not talking about the cocktail napkin gas mixing course that was taught in San Francisco during tek95. Im talking about working with an instructor who has significant experience and someone who you can learn from. Cheers __________________ Joel Silverstein, VP COO Tech Diving Limited a Division of Scuba Training and Technology Inc. http://www.nautilusdiveplanner.com FREE NAUTILUS DIVE PLANNER DEMO - REGISTER HERE KISS # 275
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17th August 2007, 04:20	#13 (permalink)
sensor330 Custom Title Allowed! Current Rebreather/s: Megalodon Other Rebreather/s: Not Bought Yet Inspiration Classic Join Date: Feb 2005 Location: Victoria, British Columbia, Canada Posts: 560	Re: heliair vs trimix Quote: (Originally Posted by JS1scuba) It's not rocket science BUT it can be screwed up pretty quickly. Learning Gas Mixing and Oxygen Service from a qualified instructor who shows up with all the right tools and materials is invaluable. What you can learn in 12 hours can save you 100. I'm not talking about the cocktail napkin gas mixing course that was taught in San Francisco during tek95. Im talking about working with an instructor who has significant experience and someone who you can learn from. Cheers I've been mixing for a few years now and have very rarely screwed up my mix. All I'm saying is my money is better spent else where.
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17th August 2007, 04:33	#14 (permalink)
JPJones O2ptima Test Dummy Current Rebreather/s: Inspiration Classic Megalodon Sport Kiss Classic Kiss Optima Titan Other Rebreather/s: Join Date: Sep 2005 Location: Florida Posts: 367	Re: heliair vs trimix Quote: (Originally Posted by JS1scuba) It's not rocket science BUT it can be screwed up pretty quickly. Learning Gas Mixing and Oxygen Service from a qualified instructor who shows up with all the right tools and materials is invaluable. What you can learn in 12 hours can save you 100. I'm not talking about the cocktail napkin gas mixing course that was taught in San Francisco during tek95. Im talking about working with an instructor who has significant experience and someone who you can learn from. Cheers Scott knows what he is doing and did both CCR Cave and CCR Trimix with me and knows more than most shops I have been around. Thats not saying that everybody else that makes home brew does. I use heliair because I'm lazy and on a rebreather for diluent it fits the bill. Now for bailout I take the time to blend. __________________ NSS/CDS Training Chairman www.jpjscuba.com
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17th August 2007, 12:46	#15 (permalink)
wedivebc FIGJAM Current Rebreather/s: Megalodon Other CCR Other Rebreather/s: Not Bought Yet Inspiration Classic Sport Kiss Other CCR Join Date: Feb 2005 Location: Vancouver Island BC Canada Posts: 1,394	Re: heliair vs trimix Quote: (Originally Posted by JPJones) Scott knows what he is doing and did both CCR Cave and CCR Trimix with me and knows more than most shops I have been around. Thats not saying that everybody else that makes home brew does. I use heliair because I'm lazy and on a rebreather for diluent it fits the bill. Now for bailout I take the time to blend. Thanks John, I was going to jump in there too but I know if told anyone what Scott does for a living he would have to kill them __________________ Cheers, Dave.... Man is the only animal burdened with the knowledge he will eventually die
(Online)

17th August 2007, 13:05	#16 (permalink)
Dave Sutton Living on Animal Farm Current Rebreather/s: Sport Kiss MK 15.X rEvo Other CCR Azimuth Home Build Other Rebreather/s: Classic Kiss rEvo Other CCR Azimuth Home Build Join Date: Jun 2006 Location: Narragansett, Rhode Island and Hackettstown, New Jersey Posts: 2,637	Re: heliair vs trimix Quote: (Originally Posted by JS1scuba) Im talking about working with an instructor who has significant experience and someone who you can learn from. Cheers All five of them..... Seriously: The issue is to figure out who knows what he's talking about, as opposed to who "holds a card". For the novitate that's sometimes a hard call. I've got a LDS who mixes trimix... their "blender" (a local "expert") has a laptop with a spreadsheet and knows exactly how to plug in the numbers and that's about it. The quality of the mixes... vary. Could he "teach" this? Sure... but what are you going to learn? With that said, watching someone who knows his shit is a very worthwhile experience. Mixing is labor intensive (took me a day to do the gas for our Doria trip... and that was only for 5 Rebreather divers). My advice is that since people are basically lazy, make friends with a good mixing guy and offer to "help". He'll likely be happy to let you, as labor is always appreciated, and you'll get to learn hands-on. After that 275th bottle is filled, you'll be pretty good... (Good and sore that is...) The other thing is to learn all of the various methods. Learning partial pressure blending is one thing. Learning continuous mixing is another.... and learning to use preblended Nitrox as a component in trimix is yet another. Many places do just one type. You might need to move around a little to get the full spectrum. Joel is dead on, as usual: You can learn lots by apprenticing to someone who's good at it. He teaches it... go see him and you'll know who you are learning from. Dive the B-29 while you're at it! Dave __________________ On a diving safari for a few months... will likely not read PM's... so email me at RedStarAviation at GMail dot Com to find me......
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17th August 2007, 13:59	#17 (permalink)
Janos "Two Sheds" Current Rebreather/s: Classic Kiss Other Rebreather/s: Classic Kiss Join Date: Feb 2005 Location: East Surrey Posts: 594	Re: heliair vs trimix I hate hypoxic dils so I have a J of 18/52 in my shed. Nice and easy to decant from. Janos __________________ You can lead a horse to water but you can't climb a ladder with a large bell in both hands - Vic Reeves www.hellfins.com/shed
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17th August 2007, 16:32	#18 (permalink)
JonORunde New Member Current Rebreather/s: Megalodon Other Rebreather/s: Join Date: Dec 2005 Location: Norway Posts: 86	Re: heliair vs trimix Another vote for keeping a bottle or two of HP premixed dil in the garage. We get 15liter / 300bar bottles, that can fill a 3liter to 230bars a lot of times before we need to fire up (no pun intended) the booster. Keeping two bottles (or more of course) as a cascade, could keep you with dil for a while, and the blending-part is only done a few times a year. But still 10/50 is _really_ quick and easy to make... -plus I don't have to flush the entire rebreather to get ppO2 down when having a high-ppO2-warning at depth... Yeah, and lazyness jon o
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17th August 2007, 19:20	#19 (permalink)
Fun Under Pressure Supporting Member Current Rebreather/s: Megalodon Other Rebreather/s: Inspiration Classic Join Date: Nov 2006 Location: Germany Posts: 640	Re: heliair vs trimix Quote: (Originally Posted by sensor330) I have the same thoughts. Mixing gas isn't rocket science. I'm not a certified gas blender and I have no intention of paying any money for such a course. Scott Yep, i think when i mixed my gases in calmly so my failures are low. And an END of 40 meters is to DEEP for me. When i dive with TMX i dive a max. END of 30 meters because I have 2 children. Cheers Markku
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17th August 2007, 19:23	#20 (permalink)
Explorer I will teach you a..... Current Rebreather/s: Evolution Megalodon Other Rebreather/s: Join Date: Sep 2005 Location: Alberta, Canada Posts: 760	Re: heliair vs trimix Quote: (Originally Posted by Fun Under Pressure) Yep, i think when i mixed my gases in calmly so my failures are low. And an END of 40 meters is to DEEP for me. When i dive with TMX i dive a max. END of 30 meters because I have 2 children. Cheers Markku Good for you Markku. __________________ REALLY FRICKIN' TRAIN WRECKED.....
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