diy doubles question

[amascuba]

As far as I know all the shops in Austin use partial pressure for nitrox. And what if you travel? How many shops do not use partial pressure?

It's pretty common practice for commercial operations, such as dive shops, to use continuous mixing or membrane systems. It allows the dive shops to mix gases safer and faster. (And in all reality a monkey could use a continuous mixing or membrane system. It's about as easy as filling a tank with air. No fancy math algorithms to figure out how much o2 to put in a tank, etc)

 

[loosebits]

I find all the shops in cave country use membrane or stick for nitrox but my LDS still uses partial pressure. I guess its a supply/demand issue.

 

[billtylerjr]

Thanks for the info everyone, perhaps I should have mentioned that I am a big guy (6'10 - 340) so handling the tanks should not be too dificult. I went with such large tanks for that reason, I can manage them and have enough supply for anything I can imagine with one purchase. Not to mention the sixe of my lungs

The training that I am refering to is tech training, advanced nitrox/dec etc. i am working in jersey and would love to do some good shipwreck diving, and perhaps cavern. I figured the larger the better (i.e. more flexable) [or just an impulse thing at Beneath The Sea this past weekend and this is how i justify it to myslef ]

 

[billtylerjr]

... continued (oops, hit post too soon)

as for expierance with doubles i ahve been renting them for some time (for DSAT tec 1) and still have a few dives left to complete tec 1 and then 2 so the rental fees alone pay for them

 

[billtylerjr]

I forgot to coment on nitrox, I do intend to fill these with nitrox, but my question is in that these are factory new tanks, valves and manafold and are said to be O2 clean already. Can I trust this claim or do I have them cleaned just to be sure? They are Faber FX133 tanks and Thermo Brand vavles and manafolds. The website (http://techdivinglimited.com/) states that they are "factory ready for nitrox"

 

[Hoosier]

Yes, you will be ok with the factory cleaned manifold. I also used the fresh new manifold, but I didn't clean it again.... But, I cleaned the tanks.

 

[Dive-aholic]

hhhmm .. Worthington HP 130's are 43 lbs each (empty).

You dive a 12lbs back plate? I've never seen one that heavy. Mine is 6lbs.

add lets say 8lbs for bolts, bands, and manifold.

43 x 2 = 96 + 6 + 8 = 110lbs. Now add gas. hhmmm ... I was beginning to think that 130lbs was heavy, but that's probably pretty close.

I know where you can get a 17lb back plate.

 

[Curt Bowen]

I forgot to coment on nitrox, I do intend to fill these with nitrox, but my question is in that these are factory new tanks, valves and manafold and are said to be O2 clean already. Can I trust this claim or do I have them cleaned just to be sure? They are Faber FX133 tanks and Thermo Brand vavles and manafolds. The website (http://techdivinglimited.com/) states that they are "factory ready for nitrox"

If they are apart, without the valve, and been lying around, they are not O2 clean. But you can put nitrox in them anyway.

 

[genxweb]

Dam I was at beneath the seathis past sat and did not see that killer deal or I would of picked it up. What booth had it?

 

[cmalinowski]

Dam I was at beneath the seathis past sat and did not see that killer deal or I would of picked it up. What booth had it?

Yea, is the deal still available? The TDL deal is $366 shipped, so closer to $700. If I could get for $500, I'm there...

Chris