With summer here, some people will be firing up the propane grill. Below is some valuable information about propane tanks that many of us purchase at propane tank exchange centers. Meth cooks are getting propane tanks from exchanges at Wal-Mart and other grocery stores and emptying them of propane. Then, they are filling them with anhydrous ammonia. After they are finished with them, they return them to the store. They are then refilled with propane and sent back for you and me to buy. Anhydrous ammonia is very corrosive and weakens the structure of the tank. It can be very dangerous when mixed with propane and hooked up to our grills, etc. You should inspect the propane tank for any blue or greenish residue around the valve areas. If it is present, refuse to purchase that one. Check out the following website for more details, including photos showing examples of the blue-green stain left on brass portions of valves. http://www.npga..org/i4a/pages/index.cfm?pageid=529 --------------------------------------------------------------- Please remember to trim your replies (including this sentence and everything below it) and adjust the subject line as necessary. To unsubscribe or change your email settings: //www.freelists.org/webpage/pctechtalk To access our Archives: http://groups.yahoo.com/group/PCTechTalk/messages/ //www.freelists.org/archives/pctechtalk/ To contact only the PCTT Mod Squad, write to: pctechtalk-moderators@xxxxxxxxxxxxx ---------------------------------------------------------------