Unless you clarify your question a little better than this, I don't think you will get any useful answers. I thought of a batch of crude and rude answers, but I'm fairly certain you weren't looking for that.
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"Don't disturb my circles." translation of Archimedes last words
Choo-choo! Do any trains run on natural gas? The 1/2' pipe size was odd, too, as pipe is usually measured in inches or mm. Nothin' like a little guesswork when posts leave out a few suitable engineering terms/data.
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In vino veritas; in cervisia carmen; in aqua E. coli.