CCR Trimix Simplifed

[Major Clanger]

Have just finished reading this by Dr Mel Clarke. Excellent, very well written, factual, to the point and she even agrees with me on the use of yellow DSMB's with a slate attached in emergencies. Bonus ;)

[SilentDiver]

Agreed it is a very good book its just a shame her books work out so bloody expensive to buy over here :(

[matt]

Is there a link to the book? How simplified is it?

Matt.

[Major Clanger]

Double.

[Major Clanger]

Is there a link to the book? How simplified is it?

Matt.

Even you'd get it ;) You knew that was coming.

[matt]

Even you'd get it ;) You knew that was coming.

hahaha.

Post a link then...

[MikeF]

Is there a link to the book? How simplified is it?

Matt.

very. although perversely it's then got the usual confusing and over complex yank maths in it. It's also a bit DIR telling you what kit you should be using instead of the more accurate and pragmatic advice 'use whatever kit works for you'. oops i can feel the wrath of DIR already for that one

mike

[iamyourgasman]

I'll have a look at that one. I can highly recommend the new PSAI Mixed gas CCR manual as well. £22 very well spent!

[Major Clanger]

Agreed it is a very good book its just a shame her books work out so bloody expensive to buy over here :(

Forty quid but only book needed for coming course so material costs deducted from course price.

[MartyC]

very. although perversely it's then got the usual confusing and over complex yank maths in it. It's also a bit DIR telling you what kit you should be using instead of the more accurate and pragmatic advice 'use whatever kit works for you'. oops i can feel the wrath of DIR already for that one

mike

Mike,
Well it is a "Yank" book, so the maths thing is inevitable :)
I've got it and didn't think it was DIResque, however the DIR guys won't descend in wrath as they're too busy laughing at as CCR loonies :)

[Major Clanger]

The equipment section could be seen as a bit mandatory in tone but no big deal and the calcs are a bit yawn but after the first read, it's a great aide memoire imo as it's well laid out and the information is easy to digest.

[WFO]

I looked at this but I'm not convinced enough to buy one, would anyone fancy lending me a copy for a bit?

[Dyson Diver]

will it be an e book in the future ,,,

[nickb]

I'm gonna spoil this party by telling everyone that it's a complete waste of money. All smoke & mirrors with pretty colour photos and no real content.
The sorry saga continues with the trimix follow-up. Even less value for money, if that's possible.
Criticising this pile of crap got me my first red from Linda Bowen on Burger World, so it's not all bad ;)

[nickb]

Oops, just noticed that its the trimix book we're talking about.
However, if you've read the first book, you ought to know what this one's gonna be like.

Once again - utter shite!

[MartyC]

FFS Nick, don't hold back :)

[Major Clanger]

I'm gonna spoil this party by telling everyone that it's a complete waste of money. All smoke & mirrors with pretty colour photos and no real content.
The sorry saga continues with the trimix follow-up. Even less value for money, if that's possible.
Criticising this pile of crap got me my first red from Linda Bowen on Burger World, so it's not all bad ;)

Lol, when all you've had previously is the IANTD ccr manual to compare it against, it's a work of art.

[thetrickster]

agrees with me on the use of yellow DSMB's with a slate attached in emergencies.

This to me, is a no brainer - how do surface support know what you problem is?? - glad that someone is putting this into writing.

I just felt sorry for the brand new slate I cut up to fit with the SMB!

[gordon mackie]

Rats - Postie delivered mine today and took it away because my wife had nipped out for an hour and nobody was in to sign for it

Need to wait till Monday and go to the sorting office...lucky I work on the same peripheral trading estate as the sorting office or I would have a right old trek

[matt]

This to me, is a no brainer - how do surface support know what you problem is?? - glad that someone is putting this into writing.

I just felt sorry for the brand new slate I cut up to fit with the SMB!

I've spoke to a few skippers about this. The best answer I've heard from one of them to a diver asking: "do you want me to put a yellow bag up if I am in trouble?" is, "what do you want me to do?".

So my question - what do you want to happen when you put up your yellow bag?

Matt.

BTW - I have one too, never used it, it's sort-of brown now.

[JPTaylor]

I'm gonna spoil this party by telling everyone that it's a complete waste of money. All smoke & mirrors with pretty colour photos and no real content.
The sorry saga continues with the trimix follow-up. Even less value for money, if that's possible.
Criticising this pile of crap got me my first red from Linda Bowen on Burger World, so it's not all bad ;)

I'd add Bozanic's "Mastering Rebreathers" to the list!!

[nickb]

I'd add Bozanic's "Mastering Rebreathers" to the list!!Which list, Good or Bad?

[Drew]

I'll have a look at that one. I can highly recommend the new PSAI Mixed gas CCR manual as well. £22 very well spent!

Any idea or links where i can get a copy please:D

[Andy Hayhurst]

Hi all,
for the PSAI CCR Trimix manual, you can get from your local instructor or give me a call (as co-author) on 07702819381

Andy

[Andy Hayhurst]

Andy

[Drew]

Hi Andy, thanks for the chat and advice.
Look forward to reading the manual ;)
regards
Drew

[GR7G5TER]

I'm gonna spoil this party by telling everyone that it's a complete waste of money. All smoke & mirrors with pretty colour photos and no real content.
The sorry saga continues with the trimix follow-up. Even less value for money, if that's possible.
Criticising this pile of crap got me my first red from Linda Bowen on Burger World, so it's not all bad ;)

Have to agree, I bought CCR simplified before before embarking down the breaver route. Didn't learn a great deal and it is very expensive for the content you get. Take the pictures and you're left with £9.99 quick read book.

Luckily I got the book on deal and managed to sell it on for only a £5 less than I paid for it!

[notdeadyet]

I'm gonna spoil this party by telling everyone that it's a complete waste of money. All smoke & mirrors with pretty colour photos and no real content.
The sorry saga continues with the trimix follow-up. Even less value for money, if that's possible.
Criticising this pile of crap got me my first red from Linda Bowen on Burger World, so it's not all bad ;)

Yeah absolute pish both books.

Sent from my GT-I9100 using Tapatalk 2

[Drew]

I've read through the PSAI Mixed gas rebreather diving that Andy sent me, got to say it's a no nonsense well written book. Learnt plenty from it so hoping my Mod2 will go ok :sweat:

[Major Clanger]

As an aide memoire the book worked for me, albeit an expensive one, and the psai one wasn't available at the time of my course. However, would still like a copy of the psai one to see why I'm still alive :)

[DiverMike]

If it is pants does that mean folks have copies they want to sell cheap?

[BTS]

Is CCR Tx complicated? I must be missing something, it all seems terribly simple and straight forward...

[JPTaylor]

It is but the industry has to pendle the myth to justify the grand for certs!

[Major Clanger]

Is CCR Tx complicated? I must be missing something, it all seems terribly simple and straight forward...

Depends who you listen to or what you read...It's not, so long as you stick to recognized practices, nor does the literature need to be...this book for mod 2 was a breath of fresh air compared to the iantd manual for mod 1, though I'd still like the psai mixed gas manual for further reading.

[nickb]

Is CCR Tx complicated? I must be missing something, it all seems terribly simple and straight forward...It seemed that way to me, until I suffered a tox. I made some changes to my diving after that.

And took a CCR trimix course.

[JPTaylor]

Is CCR Tx complicated? I must be missing something, it all seems terribly simple and straight forward...
I still feel OC Trimix diving with multiple stages is a lot hard & requires more planning.

[Paul r s]

As an aide memoire the book worked for me, albeit an expensive one, and the psai one wasn't available at the time of my course. However, would still like a copy of the psai one to see why I'm still alive :)

We're working from it this week. Will bring it with me next time I see you.

[BTS]

And took a CCR trimix course.

At which point you found out it is simple and straight forward?

[gobfish1]

It seemed that way to me, until I suffered a tox. I made some changes to my diving after that.

And took a CCR trimix course.

interesting comment Nick ,

[nickb]

At which point you found out it is simple and straight forward?No, and to think that it is would be kidding yourself, or just macho bullshit.

Dunning?Kruger effect - Wikipedia, the free encyclopedia (http://en.wikipedia.org/wiki/Dunning%E2%80%93Kruger_effect)


I still feel OC Trimix diving with multiple stages is a lot hard & requires more planning.That's either arrogant bollocks or you're suffering from the above.

[BTS]

No, and to think that it is would be kidding yourself, or just macho bullshit.



Neither, just follow some basic rules and don't over complicate it.... bit like life...

[jamesp]

It seemed that way to me, until I suffered a tox. I made some changes to my diving after that.

And took a CCR trimix course.

Would you like to elaborate at all, please?


All mine was down to guess work, but even Gobbers would dive with me.

[BTS]

Neither, just follow some basic rules and don't over complicate it.... bit like life...

Oh yeah, and accept that even the best kit in the world wont protect you from random events or the side effects of pushing to close to the fold in the envelope...

[Major Clanger]

but even Gobbers would dive with me.

That's an endorsement I'd be happy to accept. For all his tomfoolery, he knows his shit afaik.

[notdeadyet]

It seemed that way to me, until I suffered a tox. I made some changes to my diving after that.

And took a CCR trimix course.

Just out of interest, what changes did you make?

I cut my ppO2 back after suffering pulmonary symptoms and have felt the better for it. I take it from what you've said above that it was more to do with practices than a problem with the unit?

[gobfish1]

Just out of interest, what changes did you make?

I cut my ppO2 back after suffering pulmonary symptoms and have felt the better for it. I take it from what you've said above that it was more to do with practices than a problem with the unit?

id say fair play to him , for looking at what he had been doing and then changing what ever he felt need to be changed ,
also taking on more training that he may have seen as a help, to him self ,

[Gary]

That's an endorsement I'd be happy to accept. For all his tomfoolery, he knows his shit afaik.

yes but for gods sake, don't tell him!

edit, too late!

[gobfish1]

yes but for gods sake, don't tell him!

edit, too late!

lol

i only know it as iv seen it a good few times in me leggings ,, :whew:

[Major Clanger]

I cut my ppO2 back after suffering pulmonary symptoms and have felt the better for it.

What were the symptoms Stuart and from what ppo2 to what?

[notdeadyet]

What were the symptoms Stuart and from what ppo2 to what?

1.2-1.3'ish for a week, 2'ish hour dives every day, sometimes twice a day. Not deep dives but long dives. I had wheezy chest/sore throat, felt like I was getting a cold. It was similar to the feeling I had in the pot.

[Major Clanger]

1.2-1.3'ish for a week, 2'ish hour dives every day, sometimes twice a day. Not deep dives but long dives. I had wheezy chest/sore throat, felt like I was getting a cold. It was similar to the feeling I had in the pot.

Thanks for reply.

[gobfish1]

1.2-1.3'ish for a week, 2'ish hour dives every day, sometimes twice a day. Not deep dives but long dives. I had wheezy chest/sore throat, felt like I was getting a cold. It was similar to the feeling I had in the pot.

iv done a J and a half in over a weeks diving in norway and been fine 1.4 bottom and 1.6 /1.5 deco oc
i tend to get a bit horsey by the end of the week tho , if im on 50% or more helium, ccr

[Barrygoss]

1.2-1.3'ish for a week, 2'ish hour dives every day, sometimes twice a day. Not deep dives but long dives. I had wheezy chest/sore throat, felt like I was getting a cold. It was similar to the feeling I had in the pot.

Yep.
As a "hayfever induced asthmatic" I'm very aware of the effects of high ppo2 on lung function.
1.6 on OC does have a huge effect over 1.3 breather. I try to run all dives on 1.2 max and after a week at malin felt ok, so 1.3 is a max for me (my body says no above that)
Those days when I used to crank the deco to 1.5/6 aren't worth the days of coughing to follow and that was OC
B

[notdeadyet]

iv done a J and a half in over a weeks diving in norway and been fine 1.4 bottom and 1.6 /1.5 deco oc
i tend to get a bit horsey by the end of the week tho , if im on 50% or more helium, ccr

I did wonder if it might be the rollups and the Buckfast :D

[BTS]

1.2-1.3'ish for a week, 2'ish hour dives every day, sometimes twice a day. Not deep dives but long dives. I had wheezy chest/sore throat, felt like I was getting a cold. It was similar to the feeling I had in the pot.

Is it fair to say that the dil had little to do with this? and it is the prolonged exposure to O2 and that the same could happen on long, repetitive air dil dives to 30M.

[JPTaylor]

That's either arrogant bollocks or you're suffering from the above.

Not bollocks or the above thing..... just an honest opinion (we are allowed these aren't we, it is a forum?)

So OK why is CCR Trimix diving harder than OC in your opinion?

I dived RMS Egypt in 122m off France on CCR, it was relatively simple to plan & execute. It's been done on OC with twin 18's & big stages. Assuming I had the cylinders & could stand up with them on, it would have been well beyond my capability. On CCR it was swim down, swim around & come up, just a long run-time to contend with & 90 mins deco at 6m. Not that different from a 50m dive in all honesty, apart from the amount of deco & that's more a psychological issue.

Did 100m OC Trimix dive in Egypt, that was bad enough for me!!

[matt]

80m OC was my limit, deeper is nuts.

I also think keeping it simple is good advice.

Matt.

[Major Clanger]

80m OC was my limit, deeper is nuts.

I also think keeping it simple is good advice.

Matt.

The desire to go beyond 60 made my mind up to switch. On OC it was too much like hard work, anti-macho really.

[matt]

The desire to go beyond 60 made my mind up to switch. On OC it was too much like hard work, anti-macho really.

Flying Enterprise OC is what did it for me!

[2dive]

I'll have a look at that one. I can highly recommend the new PSAI Mixed gas CCR manual as well. £22 very well spent!

where can i get a copy of the PSAI mixed gass manual Soon be starting Mod2

[Capt Morgan]

Dave Crockford
www.psai-online.com/regions/about.htm

[iamyourgasman]

where can i get a copy of the PSAI mixed gass manual Soon be starting Mod2

Bristol Channel Divers in Cardiff have a copy too. Get in touch with them and I'm sure they can send it out.