I am having an issue with my 116# storage LP tank. It will absolutely not open. I mean I’ve had multiple people try to get this valve open. Using our hands, tools, almost anything. I have absolutely no idea what to do. I am trying to fill my recovery tank but cannot. Any ideas?
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No idea but damn be carefull 
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What he said:top:
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I’m thinking of contacting my supplier and just getting a new tank. I nor anyone else wants to deal with this
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It doesn t make much sense but might help make a glove witch alu foil and place dry ice in the glove cooling the valve
Maybe yust maybe it creates crimp and expansion on the diffrent components loosening something
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Return it ita not your problem
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With a vacuum on the solvent tank you wish to fill, I just turn the knob back and forth a few times and then it starts flowing. My previous tank did this to me too
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When it comes to odorless and invisible volatile gases, there are a million reasons you should NOT mess with it. There are several suppliers out there filling and refilling cylinders without the proper certifications. Hit us anytime. Our cylinders are de valved and re valved before wvery refill by certified hazmat specialists with 60+ years in LP cylinder conditioning.
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same but different, recently my lp (for my fire pit outside) wouldnt open. Most likely due to temps rising and falling causing the metal to expand. I jut swapped em out. literally tried wrenches hands etc. no luck.