[Jewelry making - Article 00841] - Re: [Orchid] Gas regulator does not drop to zero

[dan . wellman]

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    This may not be your problem, but it is good advice none-the-less.
    The acetylene tanks should always be kept upright, they are
    constructed with a honeycomb like matrix inside. This holds the
    acetone in which the acetylene is disolved. If tipped the acetone
    can come out with the acetylene (little spits in the flame). This
    also is how they store acetylene in the tank  AT  a pressure greater
    than 15psi. (Acetylene becomes unstable around 15 psi). 

    About the beat up tanks... it is best if you can take the tank in to
    exchange yourself, that way you can check the tank before you take
    it. Sometimes they mistakenly send out an empty tank, or one where
    the square valve is so tight that it breaks. You don't have to
    accept any that are too beat up etc. 

Dan Wellman
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