Carbon Monoxide Detector Proper Placement

ferndaleflyer wrote:
Interesting--I worked as a contractor in Vietnam and lost 2 of my employees to carbon monoxide. A pump in a well stopped working and the foreman went down in it, about 40ft, to see what wrong and the workers above saw him fall into the water and another one went down. He to fell in the water. When they were got out it was determined that the carbon monoxide had killed them. I had been down in that well myself no problem but we in the meantime had started a diesel power station right above the well. We were told that carbon monoxide had settled in the well because it was a heavier gas. Were we told wrong? I have always believed that since then.

Are you sure it wasn't due to an accumulation of carbon dioxide, which is a bit heavier than air, and can cause asphyxiation if it accumulates in a closed place? Diesel engines, if adjusted and operating properly, do not produce a great deal of carbon monoxide because the fuel charge is burned with an excess of air and so incomplete combustion is nearly impossible.