Is it air quality?

[Don Burke]

The one and the same you quoted referring to Carbon Monoxide (CO) and how you can modify a CO2 detector to detect it (CO) as well?

Modifying a CO2 detector to detect CO would basically involve throwing the CO2 detector away and buying a CO detector.

 

[CD_in_Chitown]

Modifying a CO2 detector to detect CO would basically involve throwing the CO2 detector away and buying a CO detector.

Finally, relevance.

 

[Don Burke]

Finally, relevance.

interesting

 

[gaudencio]

Another possibility is the food. Did you and your buddy eat the same things for breakfast?

Some divers react badly to a greasy breakfast of sausage and eggs, followed by a head down postition during descent. When that grease hits the pyloric sphincter (valve at the top of the stomach) it can give you the sensation that breakfast is going to keep going. Other divers experience the same effect as heartburn and indigestion.

And another possibility: Were you diving in a surf zone? I'm thinking vertigo here.

Disclaimer: I am not an MD, just another bored nerd speculating on the web instead of diving.

thanks for the reply, but I think it's not the food. Since I prepared it myself and we only had sandwiches for breakfast. There was also no vomiiting or expulsion of food. only the feeling of vommitting. or act of vommitting. We also encountered these in all three dives. me and my buddy. The dives resort have a lot of tanks but not much business unlike other dive resorts. (Could it be stale air). We have not rented from them for a long time now. It wa only this time that we had the opportunity. Since The surf was big and we cannot go to other resorts and get tanks.

 

[gaudencio]

Thanks for all your insights.
Conditions on that day was:
Water temp. 25-27 degrees
visibilty 1st dive 60-70 ft. 2nd dive 50-60ft. 3rd dive 40-50 ft.
No we did not eat greasy food. i even prepared the sandwiches myself 45mins. before the first dive. lunch was taken 1 hrs. before our 3rd dive
Water depth 1st dive 85 ft./ 2nd dive 105 ft./ 3rd dive 65 ft.

And this is the first time that I have encountered this having more than 500 dives.
The air seems to have a slight smell as I can remember. Like rust or I can't distinguish.
No, we did'nt have any headache.
I already complain to the dive resort about this instance but got no response yet. :dazzler1:

 

[Don Burke]

Thanks for all your insights.
Conditions on that day was:
Water temp. 25-27 degrees
visibilty 1st dive 60-70 ft. 2nd dive 50-60ft. 3rd dive 40-50 ft.
No we did not eat greasy food. i even prepared the sandwiches myself 45mins. before the first dive. lunch was taken 1 hrs. before our 3rd dive
Water depth 1st dive 85 ft./ 2nd dive 105 ft./ 3rd dive 65 ft.

And this is the first time that I have encountered this having more than 500 dives.
The air seems to have a slight smell as I can remember. Like rust or I can't distinguish.
No, we did'nt have any headache.
I already complain to the dive resort about this instance but got no response yet. :dazzler1:

Any smell or taste at all is a danger signal.

I have read that rust can deplete the oxygen in the air, but it seems to me it would take quite a bit of rust to make enough of an effect.

I still wouldn't rule out the food. Food does not need to be greasy to make you more susceptable to motion sickness.

 

[opiniongirl]

When we dived last week. I experienced vomitting during my 3 dives. i thought it was only me that had this feeling of vomitting. But it also occured to my buddy. Vommiting is not accompanied by actual expulsion of food but only the feeling of vommitting. We think it is the air quality, or is there any thing else that could cause that experience. How could you notice the good air if we test it before we dive. What's the smell, it seems very hard to identify.

Jimmy T. :dazzler1:

OMG - Where did you get your tanks filled.....

 

[pasley]

Modifying a CO2 detector to detect CO would basically involve throwing the CO2 detector away and buying a CO detector.

Actually, unless you purchase a detector specifically made for the task you would have to modify the home version to work on the scuba tanks. Something about flow rates and getting the air from the tank to pass across the sensor, but not at such a speed that it can't analyse the sample. In any case the link that was provided tells how to do it.

That is an excellent answer to a question that was not asked....If there had been any mention of headache, I would have brought up carbon dioxide.

Ahem!, Carbon Monxide Poising is often misdiagnoised because it mimics flu like symptoms. To quote from a government website: The symptoms are:
headache, dizziness, weakness, nausea, vomiting, chest pain, and confusion.

High levels of carbon monoxide ingestion can cause loss of consciousness and death. Unless suspected, carbon monoxide poisoning can be difficult to diagnose because the symptoms mimic other illnesses. People who are sleeping or intoxicated can die from carbon monoxide poisoning before ever experiencing symptoms. http://www.cdc.gov/nceh/airpollution/carbonmonoxide/cofaq.htm

Since original post complained about felling like vomiting but not, I took that to meet the definition of nausea. Note, not all symptoms need be present. One or more symptom may indicate the presence of carbon monxide. Granted headache is often the first.

Recently in SoCal there was a dive boat that had some oil get into the air they pumped. It happens in the best of operations and your first indication is the complaints from the customers. Naturally they worked to make it right by their customers and to take care of the cost of getting the customers air tanks cleaned of the contaminating oil. I will note that several divers in this case were involved.

I would get the inside of my tanks checked to see if there was any oil contamination there.

Oh, and try Cherrioes, better for the heart.