Trimix...rebreathers...if only sooner...

chunter · 14th March 2007, 15:25

Quote: (Originally Posted by tekdiver170)

At this rate I'll have the unit paid off in no time.

I wonder how long it's going to take me to pay off my Mk 15.5? Let's see...$18,000 divided by a difference of $100 per dive...WOW! It's only gonna take me 180 trimix dives! I'll have that done in a week

Nick uk. · 14th March 2007, 16:57

Quote: (Originally Posted by decoweenie)

That's more than I pay for gas in one entire year diving trimix just about every week-end...

That's what your OC buddies and a decanting whip are for.......

PaulTG2 · 14th March 2007, 18:05

Quote: (Originally Posted by Nick uk.)

That's what your OC buddies and a decanting whip are for.......

You know, that's not a bad idea if you have a booster pump. At the end of the dives pump the highest He mix out of what's left over from your buddies bottom mixes and keep it for the next dive. Hmmm... wonder if they'd notice...

Mark Chase · 14th March 2007, 18:20

Apparently the secret with OC diving gas is to become a DIR diver. when ever I tell a DIR diver a 70m dive cot me over £125 in gas they always retort with £30 fills of 16/65 and £10 fills of 02 and Nitrox 50????

Becoming a DIR diver they must give you the secret password to tell the blender chap and he knocks the price of the gas down by 75% Bit like when Homer Simpson became a lodge member and got the blipper to the empty roads during rush hour.

Mind you its not ALLL the DIR divers fault. I was at DIVERS06 listening to CCR diver and instructor Jack Ingle giving a talk on deep diving. He said some divers will tell you diving CCR pays for its self but thats just rubbish?

I wanted to stand up and point out i had reduced my annual gas bill from about £2500 down to £250 and my CCR had paid for its self in two years but how do you explain it to divers who think doing 15min bottom times on deep dives is OK and they only do a couple of dives below 50m a year.

ATB

Mark Chase

**fireman** · 14th March 2007, 22:09

Surely some of this price problem is the cost of He. Since most of it comes from the US and the USSR. What does HE cost over there. I got a 300 cu ft cylinder of 99.997% for $75. But there is no doubt that Rebreather save a lot of gas.

tekdiver170 · 14th March 2007, 22:56

300cf for only $75!! Out in HI "breathing grade" He is running at $1.60/cf. and climbing. The "industrial grade" (which it turns out is filled from the same tank at the gas supplier) is $1.10/cf. and since it is the same stuff as the "breathing grade" we are now blending with it.

Since I work at the dive shop I get it at cost, which still turns out to be expensive. The price I pay to live on a small rock.

decoweenie · 15th March 2007, 03:24

Quote: (Originally Posted by Mark Chase)

...how do you explain it to divers who think doing 15min bottom times on deep dives is OK...

Mark,

Why is that not OK ?

decoweenie · 15th March 2007, 04:39

Quote: (Originally Posted by chunter)

...to pay off my Mk 15.5? Let's see...$18,000...

You paid 18-grand for your MK15.5 ?

Damn, I didn't think inflation has gone up that much...

montyg · 15th March 2007, 06:04

Quote: (Originally Posted by fireman)

Surely some of this price problem is the cost of He. Since most of it comes from the US and the USSR. What does HE cost over there. I got a 300 cu ft cylinder of 99.997% for $75. But there is no doubt that Rebreather save a lot of gas.

FWIW we pay US$216 for a slightly bigger cylinder of 99.999% helium.

And that's just the contents, excluding rental! Rental over here is about US$22 per cylinder per month, and that is if you fetch & carry it yourself.

Count your blessings!!!

(300 cuft equals 8500 liters of helium, and ours is 50 liters x 200 bar which is 10 000 liters of helium - if my math is correct!)

rgds
monty

Johnny Christensen · 15th March 2007, 06:57

Quote: (Originally Posted by montyg)

FWIW we pay US$216 for a slightly bigger cylinder of 99.999% helium.

(300 cuft equals 8500 liters of helium, and ours is 50 liters x 200 bar which is 10 000 liters of helium - if my math is correct!)

rgds
monty

Well the math is correct, but you only get 9100 liters helium in a 50Lx200 bar cylinder.
That is specified in the bill from the gas companies here in Denmark.

We pay just about the same price for helium. But even with my huge anual savings on gas, when adding it all up. The rebreather has not paid for itself yet. Cost of repair and maintenence is too high to do that.

14th March 2007, 15:25	#11 (permalink)
chunter I like diving Current Rebreather/s: Sport Kiss MK 15.X Other Rebreather/s: Inspiration Classic Inspiration Vision Evolution Classic Kiss Join Date: Jul 2006 Location: Honolulu Posts: 481	Re: Trimix...rebreathers...if only sooner... Quote: (Originally Posted by tekdiver170) At this rate I'll have the unit paid off in no time. I wonder how long it's going to take me to pay off my Mk 15.5? Let's see...$18,000 divided by a difference of $100 per dive...WOW! It's only gonna take me 180 trimix dives! I'll have that done in a week __________________ "Foolish consistency is the hobgoblin of little minds." - Emerson "Hobgoblin is a cool word." - Charlie
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14th March 2007, 16:57	#12 (permalink)
Nick uk. Made in England. Current Rebreather/s: Inspiration Classic Azimuth Other Rebreather/s: Azimuth Join Date: Nov 2005 Location: Viale C.Colombo 75 Marina di Carrara. MS 54036 Italy Posts: 579	Re: Trimix...rebreathers...if only sooner... Quote: (Originally Posted by decoweenie) That's more than I pay for gas in one entire year diving trimix just about every week-end... That's what your OC buddies and a decanting whip are for....... __________________ If it aint broke....don't fix it, and if it is.............well......get another one! divechief2000@hotmail.com
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14th March 2007, 18:05	#13 (permalink)
PaulTG2 Custom Title Allowed! Current Rebreather/s: Megalodon Classic Kiss Other Rebreather/s: Sport Kiss Join Date: Mar 2006 Location: Virginia, USA Posts: 425	Re: Trimix...rebreathers...if only sooner... Quote: (Originally Posted by Nick uk.) That's what your OC buddies and a decanting whip are for....... You know, that's not a bad idea if you have a booster pump. At the end of the dives pump the highest He mix out of what's left over from your buddies bottom mixes and keep it for the next dive. Hmmm... wonder if they'd notice...
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14th March 2007, 18:20	#14 (permalink)
Mark Chase I go down for ages Current Rebreather/s: Classic Kiss Other Rebreather/s: Inspiration Classic Join Date: Jan 2005 Location: Kent Posts: 2,694	Re: Trimix...rebreathers...if only sooner... Apparently the secret with OC diving gas is to become a DIR diver. when ever I tell a DIR diver a 70m dive cot me over £125 in gas they always retort with £30 fills of 16/65 and £10 fills of 02 and Nitrox 50???? Becoming a DIR diver they must give you the secret password to tell the blender chap and he knocks the price of the gas down by 75% Bit like when Homer Simpson became a lodge member and got the blipper to the empty roads during rush hour. Mind you its not ALLL the DIR divers fault. I was at DIVERS06 listening to CCR diver and instructor Jack Ingle giving a talk on deep diving. He said some divers will tell you diving CCR pays for its self but thats just rubbish? I wanted to stand up and point out i had reduced my annual gas bill from about £2500 down to £250 and my CCR had paid for its self in two years but how do you explain it to divers who think doing 15min bottom times on deep dives is OK and they only do a couple of dives below 50m a year. ATB Mark Chase __________________ Is it supposed to make that noise ? I took my unit to the dive shop and demanded they bolt on every thing that would fit. Join my elite diving teem and get a Tshirt "Doing It Chasey"Hammerhead Eccr Advanced Diving System
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14th March 2007, 22:09	#15 (permalink)
fireman rEvo combat swimmer Current Rebreather/s: rEvo Other CCR Other Rebreather/s: rEvo Other CCR Join Date: Nov 2006 Location: chicago Posts: 526	Re: Trimix...rebreathers...if only sooner... Surely some of this price problem is the cost of He. Since most of it comes from the US and the USSR. What does HE cost over there. I got a 300 cu ft cylinder of 99.997% for $75. But there is no doubt that Rebreather save a lot of gas. __________________ Heres to you Capt. Bill Never Forget, and stay safe everyone.
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14th March 2007, 22:56	#16 (permalink)
tekdiver170 New Member Current Rebreather/s: Inspiration Vision Other Rebreather/s: Join Date: Jan 2007 Location: Honolulu, HI Posts: 87	Re: Trimix...rebreathers...if only sooner... 300cf for only $75!! Out in HI "breathing grade" He is running at $1.60/cf. and climbing. The "industrial grade" (which it turns out is filled from the same tank at the gas supplier) is $1.10/cf. and since it is the same stuff as the "breathing grade" we are now blending with it. Since I work at the dive shop I get it at cost, which still turns out to be expensive. The price I pay to live on a small rock.
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15th March 2007, 03:24	#17 (permalink)
decoweenie Crash Test Dummy Current Rebreather/s: Other CCR Other Rebreather/s: Other CCR Join Date: Feb 2005 Location: Cairo Posts: 5,510	Re: Trimix...rebreathers...if only sooner... Quote: (Originally Posted by Mark Chase) ...how do you explain it to divers who think doing 15min bottom times on deep dives is OK... Mark, Why is that not OK ? __________________ "...after a while you get bored offering advice to a bull that like to keep butting the fence with its head rather than walking through the open gate..." - Rebreather World PM
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15th March 2007, 04:39	#18 (permalink)
decoweenie Crash Test Dummy Current Rebreather/s: Other CCR Other Rebreather/s: Other CCR Join Date: Feb 2005 Location: Cairo Posts: 5,510	Re: Trimix...rebreathers...if only sooner... Quote: (Originally Posted by chunter) ...to pay off my Mk 15.5? Let's see...$18,000... You paid 18-grand for your MK15.5 ? Damn, I didn't think inflation has gone up that much... __________________ "...after a while you get bored offering advice to a bull that like to keep butting the fence with its head rather than walking through the open gate..." - Rebreather World PM Last edited by decoweenie : 15th March 2007 at 06:19.
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15th March 2007, 06:04	#19 (permalink)
montyg Monty Guest Current Rebreather/s: Home Build Other Rebreather/s: Home Build Join Date: Feb 2007 Location: Cape Town, South Africa Posts: 229	Re: Trimix...rebreathers...if only sooner... Quote: (Originally Posted by fireman) Surely some of this price problem is the cost of He. Since most of it comes from the US and the USSR. What does HE cost over there. I got a 300 cu ft cylinder of 99.997% for $75. But there is no doubt that Rebreather save a lot of gas. FWIW we pay US$216 for a slightly bigger cylinder of 99.999% helium. And that's just the contents, excluding rental! Rental over here is about US$22 per cylinder per month, and that is if you fetch & carry it yourself. Count your blessings!!! (300 cuft equals 8500 liters of helium, and ours is 50 liters x 200 bar which is 10 000 liters of helium - if my math is correct!) rgds monty Last edited by montyg : 15th March 2007 at 06:07. Reason: add teh bot about rental cost ...
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15th March 2007, 06:57	#20 (permalink)
Johnny Christensen Custom Title Allowed! Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Apr 2006 Location: Denmark Posts: 304	Re: Trimix...rebreathers...if only sooner... Quote: (Originally Posted by montyg) FWIW we pay US$216 for a slightly bigger cylinder of 99.999% helium. (300 cuft equals 8500 liters of helium, and ours is 50 liters x 200 bar which is 10 000 liters of helium - if my math is correct!) rgds monty Well the math is correct, but you only get 9100 liters helium in a 50Lx200 bar cylinder. That is specified in the bill from the gas companies here in Denmark. We pay just about the same price for helium. But even with my huge anual savings on gas, when adding it all up. The rebreather has not paid for itself yet. Cost of repair and maintenence is too high to do that. __________________ www.johnnychristensen.com Wreckphotography from the cold north
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