Dive computer manual stating multiple dives per day for more than a week unsafe?

[Frosty]

If it makes you feel any better, currently, no validated scientific literature allows a single dive without a risk of decompression sickness.

If you breathe compressed air underwater, you are at some risk for decompression sickness. The more dives you do and the less time between them, the greater that risk. Taking up the hobby of scuba diving is all about managing that risk, reducing it to an acceptable level for you, and drawing a bright line through a grey area.

Dave Lucas THIS ^^^^^^^ covers it off pretty clearly.
Diving will not ever be risk free. Best you can do is reduce the risk to the minimum possible

 

[Nemrod]

Just dive until you drop. You will be fine. If you like, as the week goes on, just dive more conservative. N

 

[Dave_lucas]

dumpsterdiver

Where should I go when I have questions or want to learn more about the subject of diving?

the LDS that sold me equipment?

other divers at the lake?

An instructor?

they are all strangers as well how can I trust them anymore than the random person on this board that responds?

i can't that is why I seek out information from multiple sources including the user manual, research and yes random individuals. I then take all of the information keep what makes sense throw out the garbage and make a decision that I feel comfortable with and live with the results.

i am not going to blindly follow what people post just like I am not going to blindly follow the manual or what the computer says if the data does not make sense.

 

[dumpsterDiver]

It was a joke... Sorta... Go slow, if you don't get bent push it a little harder. I've done 5-7 dives a day.. hardly ever have joint pain from it..

 

[Dave_lucas]

Sorry if I did not catch the tone of your post properly.

thanks for the info

 

[100days-a-year]

Good thinking there,the internet is 90% porn/viagra ads/scams 9% BS and 1% that may or may not apply.

Better to apply logic and critical thinking to data from multiple sources that appear reliable and repeatable.

I am outside the box in one direction,I have 2 buddies that cannot safely do 2 dives daily in 100' due to massive scarring from auto accidents in shoulders and other joints.
No need to ride the ragged edge in a supposedly recreational pursuit.At least, not all the time.

 

[scagrotto]

_ WARNING: Currently, no validated
scientific literature allows to dive more than
twice a day for periods of one or more weeks
without the risk of decompression sickness.
For your own safety, it is important to avoid
diving for more than two times a day.

What you're confused by
is that the computer continues to work,
even after the "violation" it warns you about.

That was my first thought. If the computer doesn't "know" it's safe to do a 3rd dive, why would the computer indicate an NDL>0 for a 3rd dive?

On further reflection I'm wondering if it's an unclear warning about the "periods of one or more weeks" part rather than the two dives per day. There seems to be a fairly broad consensus that, while it might not be necessary, it's a good idea to take a day off when making multiple dives each day for more than a week or 10 days. That still leaves you with a computer that continues to offer an NDL>0 even when there's been a violation (albeit of the warning, rather than operational parameters), but where would you draw the line? Lockout on day 8 when you were planning to skip day 9 because it makes more logistical sense? Lockout on day 9 when that was to be your last day of diving? Or a computer that keeps on computing, but comes with a warning in the manual? Only the last works if you want to be able to sell the things.

 

[TSandM]

The manual is almost certainly correct. I doubt there is any scientific research into the safety of multiple dives for multiple days, especially exceeding a week. There is, to be honest, not much real research into doing four or fives dives in a day, period. That doesn't mean a great many people haven't done it without incident, it just means nobody has studied it. Scuba isn't studied very much, because the studies are difficult to do (to minimize variables) and are expensive, and DCS is rare enough that it isn't seen as a major problem.

So the computer manufacturer is covering his behind with the statement. It's like the warning on drive-thru coffee that it might be hot.

 

[KenGordon]

dumpsterdiver

Where should I go when I have questions or want to learn more about the subject of diving?

the LDS that sold me equipment?

other divers at the lake?

An instructor?

they are all strangers as well how can I trust them anymore than the random person on this board that responds?

i can't that is why I seek out information from multiple sources including the user manual, research and yes random individuals. I then take all of the information keep what makes sense throw out the garbage and make a decision that I feel comfortable with and live with the results.

i am not going to blindly follow what people post just like I am not going to blindly follow the manual or what the computer says if the data does not make sense.

Read this Deco for Divers by Mark Powell

 

[dmaziuk]

It was a joke... Sorta... Go slow, if you don't get bent push it a little harder. I've done 5-7 dives a day.. hardly ever have joint pain from it..

I hardly ever get joint pain from riding a bike to work...