[Jewelry making - Article 00045] - Re: [Orchid] Utility Sink, Hard or Soft Water?

[Glenn Block]

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    Hi Lee, Thanks for the caution on disposing of investment.  I am
    aware of that.  I believe I am going to use the softened water line
    for the cold water tap, because I think it will make for better mix
    with cleaning agents.  Insofar as using water for casting, I like
    your idea of using a water store.  It's probably well worth it
    considering that it is inexpensive, and I am sure the casting results
    are better. 

    I have perforated flasks with my casting system, and I was wondering
    if the same would hold true about leaving a 1/4 inch of head room for
    each inch of the perforated flask.  Also, I presume when you say
    "head room", you are referring to the amount of investment that is
    poured into the flask with respect to the top of the flask.  I never
    vacuum cast before, but I kind of get the idea that if you fill up
    the flask, it will overflow.  Is this what you are referring to with
    regard to leaving enough head room?  Also, I remember reading about
    what you said with regard to the concave part on the bottom of the
    vacuumed flask somewhere in my jewelry escapades. Do you think this
    also holds true or is necessary for perforated flasks? Thanks again
    for your comments. 

Regards,
Glenn
Shardan Jewelry

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