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Peter J · 02-09-2011, 09:58 AM

I worked at a store where compressed air was used. SOP at the end of each day was to open the petcock at the bottom and drain air/H2O out the bottom and leave them open until next day.

02-09-2011, 09:58 AM	#3
Peter J Senior Member Join Date: Jul 2010 Location: Olympia, WA Posts: 691	Re: Proof of the BIG Bang Theory I worked at a store where compressed air was used. SOP at the end of each day was to open the petcock at the bottom and drain air/H2O out the bottom and leave them open until next day.