Really dumb question.

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DriverDiver

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Messages
29
Reaction score
9
Location
W. Michigan
# of dives
50 - 99
Have a really dumb question. New to diving, and purchased a Scubapro bcd. It says it has a max tank size of 15 liters (117 ft3) but, being an airhog newbie, I also purchased 2 HP120 tanks (15.3L) as these are what the local dive shop has to rent larger than an Al80. Am I ok with this combination?
 
You will have no trouble at all. I used to own a ScubaPro Nighthawk BCD, with probably the exact same tank system as yours, and I had no trouble whatsoever using HP 120s. I loved them, in fact.
 
I suspect the max recommended size has to do more the with diameter of the tank more than anything. A HP 117 tank is big and has a larger diameter than a 120 (8.0" versus 7.25" for the 120).
 
Worst case scenario you'll have to buy a longer quick release system from scubapro for a tank strap.

HP120s are 7.25" in diameter, same as AL80s. They should fit fine.
 
I hope you have a computer and a good way to check your nitrogen loading. If you are an air hog (as I am) you probably will run out of air before you need to deco or get bent. But with those large tanks, you need to be careful, esp. as your air consumption gets more efficient. Some people use nitrox on every dive as an added layer of safety. Just sayin'

- Bill
 
I hope you have a computer and a good way to check your nitrogen loading. If you are an air hog (as I am) you probably will run out of air before you need to deco or get bent. But with those large tanks, you need to be careful, esp. as your air consumption gets more efficient. Some people use nitrox on every dive as an added layer of safety. Just sayin'

- Bill
I took the nitrox class the same week I took my open water class. I don't think any of the dozen dives I have done since I got certified has been on air, even though all but three were just playing around in a local lake.
 
I took the nitrox class the same week I took my open water class. I don't think any of the dozen dives I have done since I got certified has been on air, even though all but three were just playing around in a local lake.
You don't think????
This is very dangerous you need to be sure what gas your breathing. Your life depends on it.

I'm an air hog as well I have 2 steel tanks 120 and 149. The guys at the LDS make fun of me but dive twin 100s so I don't really get where they are coming from but that's besides the point.

Make sure you KNOW what gas your breathing. Nitrox has max depths depending on the mix where you can breathe it safely, if your actually breathing 21% and your computer is set to 36% your NDL will be still showing time when your actually into deco.
 
You don't think????
This is very dangerous you need to be sure what gas your breathing.
C'mon man, what he said is that he does not remember what gas he has used, why should he?


At op, just check that your tank fits on the bcd (strap) and that it doesn't prevent inflation. Then you're good to go
 
https://www.shearwater.com/products/perdix-ai/

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