O2 onboard

[usmarinekurt]

I am contemplating buying a pricey item I hope I never use.
Why doe this feel like a rip off?

 

[Chuck Tribolet]

It's worth every penny for peace of mind. I carry the DAN kit that doesn't
include a tank, and E-tank of O2 (bigger than DAN's jumbo D). On my boat
that fits better than the DAN kit with a tank which comes in a MONDO
Pelican case.

 

[Teamcasa]

I think if you use your boat for diving the O2 kit should be on the must have list. Yes, it is a little pricey but hopefully, you will never have to use it. But it is one of those items that if you don't buy one, you will certainly need it.

 

[usmarinekurt]

it is officially onboard
looks cool

 

[DwayneJ]

What did you buy? The DAN kit only??

 

[usmarinekurt]

I got a MADA kit.
Basic for now.
Alot of ooo and aahing by the divers on the boat.

 

[Md Spear]

If you are hitting remote areas, most kits dont give you enough O2. We put a LP 120 ofoxygen on the Scarab and set a reg To go to 14 fsw for some inwater use. cant have enough O2 when you're way out there. super cheap insurance.

 

[Stoo]

looks cool

That's the main thing! DAN sells a spiffy "Oxygen Onboard" sticker if you want to show off!

I have a small DAN kit, but generally also have a larger bottle of O2 on board as well. Much of my diving is in Tobermory and not too far from shore, but at times we are as much as 35 miles out. Any O2-cleaned cylinder can be used as a spare supply of O2 as long as you are happy to fit a regular SCUBA reg, rather than an O2 mask.

 

[Gilldiver]

If you are hitting remote areas, most kits dont give you enough O2. We put a LP 120 ofoxygen on the Scarab and set a reg To go to 14 fsw for some inwater use. cant have enough O2 when you're way out there. super cheap insurance.

Get a longer high flow hose, 3/8" ID or bigger, that will go down to 20', put a T on it and run two 2nd stages on 10' whips. Put ball valves after the T so you can shut off the 2nd stages when not in use as 2nd stages will free flow in any current.

Now a 2 diver team can do 100% boat suppled at 20 and 10.

You can use a large scuba tank or just a 100-300 foot tank of O2 and a high flow welding regulator.

 

[Akimbo]

Get a longer high flow hose, 3/8" ID or bigger, that will go down to 20', put a T on it and run two 2nd stages on 10' whips. Put ball valves after the T so you can shut off the 2nd stages when not in use as 2nd stages will free flow in any current.

Now a 2 diver team can do 100% boat suppled at 20 and 10.

You can use a large scuba tank or just a 100-300 foot tank of O2 and a high flow welding regulator.

Ball vales should be avoided on oxygen systems. My first exposure to the prohibition was in the Navy and has been consistent throughout my career. The reasoning is that ball valves generate high velocity through rapid pressurization. Any particles in the gas stream can reach sufficient speeds to ignite. Obviously, the risk is much less on low pressure systems; but it is still considered a bad practice.

Here is one of many references:
http://www.americanairworks.com/Oxygen_Safety_Practices.pdf

See 2.2. Pneumatic Impact or Compression Heating, Page 3