Check the tare weight or (TW) on the tank this is the weight of the cylinder empty. TW 18.5 would be the weight of the bottle empty. If you weigh your bottle and it weighs say 27 pounds 27-18.5=8.5 pounds left in the cylinder. You can tell if a propane tank is empty by shaking it an listening to it.
On September 13, 2014, Fort McHenry in Baltimore held a 200th anniversary celebration to mark the writing of the âStar Spangled Banner.â (Getty) âThe Star Spangled Bannerâ has been the official U.S. National Anthem since 1931 and is commonly heard today before sporting events and other patriotic gatherings. The lyrics â at least those to the first verse â have become ingrained in Americaâs culture, as much as apple pie and baseball.
Francis Scott Key. 1  Keyâs Manuscript This is the earliest known manuscript of Keyâs song. 2  Defence of Fort McHenry This is the first known printing of Key's poem. 3  The Star-Spangled Banner The first sheet-music issue of âThe Star-Spangled Bannerâ was printed by Thomas Carrâs Music store in Baltimore in 1814.