First time using a grinder

Originally Posted by CapitalRecovery

I have been scrapping computers for a while now never needed to grind metal but on my 18 year anniversary my lovely wife bought my a grinder and a shop vice.
At the end of March this year we celebrated our 20 year anniversary. I wanted the grinder so I can cut a propane tank to make a smelter. (Wussed out. Didn't want to blow myself up.) Fast forward to today. I cut the top off a helium tank AND IT WAS AWESOME!!!!
The end

As far as cutting or torching gas tanks, propane tanks, fifty gallon drums, etc. - remove the valve or caps and fill with water before starting. They will not have any fumes remaining and any explosive will be diluted by the water.