[TheForge] cutting propane cylinders

[xlch58 at swbell.net]

An old dodge for welders arc welding potentially explosive tanks was to 
direct the exhaust from their gas welders into the tank to displace any 
oxygen with essentially inert gases.    You need a long hose to make 
sure any sparks are out by the time the exhaust gets to the tank.   Even 
then, explosions do ocur.

Charles

Gladish Family wrote:

> Only just after washing it.
> I figure if the candle is suicide, then so is the hacksaw (sawzall), 
> since it throws sparks.
> If I let the candle burn down and out, then the O2 is exhausted and 
> the I have a neutral atmosphere inside.
> AG.
>
> Bruce Freeman wrote:
>
>> Would you burn a candle in an old gasoline tank?  Sounds like attempted
>> suicide to me.
>>
>> The reason for filling a tank with water is to displace the air (which
>> may contain an explosive concentration of fuel) and to cool any sparks
>> that might otherwise occur.
>>
>> Bruce
>> NJ
>>  
>>