Bad scuba advice you've received

[doctormike]

You initially indicated that tank air is REQUIRED for inflation at surface. That was erroneous thinking, glad you corrected yourself.

"an emergency on the surface MIGHT require gas not just for breathing but for inflating a BC"

I stand by my initial phrasing, and my larger point about not surfacing with 200 PSI.

And if you are ever trying to keep an unconscious diver afloat, just hit their inflator button and then ditch their weights. Even though you are skilled in the art of oral inflation.

 

[johndiver999]

"an emergency on the surface MIGHT require gas not just for breathing but for inflating a BC"

I stand by my initial phrasing, and my larger point about not surfacing with 200 PSI.

And if you are ever trying to keep an unconscious diver afloat, just hit their inflator button and then ditch their weights. Even though you are skilled in the art of oral inflation.

LOL.. "require". That is bad thinking/planning. It is better to assume that you can and will do the rescue by orally inflating IF the inflator is unconnected or the tank is empty or something like that.

As I tried to describe with specific and recent anecdotal information, if the diver does not keep the idea of (the option of) oral inflation in their mind during a stressful situation, then they might forget about it.

The "larger point" of the benefits of surfacing with enough air is obviously undisputable and I am unable to understand how you would perceive my comments to indicate otherwise.

Years ago had a tech diver buddy who had a dual inflation BC, but came up early, blew off deco and he said he blew off deco because he was too low on his main tank and was worried that he would not be able to use the power inflator to maintain buoyancy. I was incredulous and said you had a bail out bottle and deco gas and you can always orally inflate ... isn't that is what your second bladder is for? He had no response and we gave him oxygen on board as his computer beeped. It was another very strong reminder to myself that we need to NOT rely on the power inflator working.

 

[doctormike]

LOL.. "require". That is bad thinking/planning.

You know, you may be right.

 

[diver-man]

Bad advice I have received: you need to have twinset 2x12 L because every DIR/Hog/Tech diver has it.

Do you know what's wrong with that statement?

 

[Alekseolsen]

Bad advice I have received: you need to have twinset 2x12 L because every DIR/Hog/Tech diver has it.

Do you know what's wrong with that statement?

For DIR cave divers the D12's would be too small

 

[crofrog]

While I am using a CCR and I’m certified to deco with it so it’s not a problem of mine. My buddy usually dives singles and we get along with each other really well so I enjoyed diving with him. Just need to push it a bit by overfilling a little and use up the tank more

The fact you’re on a ccr and don’t understand why that’s bad advice is terrifying. How to you calculate you’re required BO?

 

[b1gcountry]

Said tongue in cheek:
"You carry a dive knife in case of sharks. If a shark attacks you underwater, you can cut you buddy's fin straps and swim away. You don't need to outswim the shark, you just need to outswim your buddy.

 

[alanchang]

The fact you’re on a ccr and don’t understand why that’s bad advice is terrifying. How to you calculate you’re required BO?

I took my training seriously and I calculate my required BO using the recommended 45LPM bottom BO and 30LPM DECO BO. And I always carry more. For such a dive at 120ft with very limited deco(10 mins), I carry an AL80.

 

[doctormike]

I took my training seriously and I calculate my required BO using the recommended 45LPM bottom BO and 30LPM DECO BO. And I always carry more. For such a dive at 120ft with very limited deco(10 mins), I carry an AL80.

But you tell your buddy that it's OK to surface with 200 PSI in a single tank from 120 feet?

 

[alanchang]

But you tell your buddy that it's OK to surface with 200 PSI in a single tank from 120 feet?