Last night we cut a length of 5/16″ copper tube, flared it, bent it, and connected the left steam wand valve to the shut off. Previously this was a missing link inside our espresso machine. We had forgotten that flexible copper goes ridged the more one bends it. We love flare fittings, although a man at the refrigeration supply house insist we use Leak lock on the orifice-flare connection our plumbing work is a little more honest than this. There are few times when mating copper and brass we use a gap filler like teflon, and these are exactly the times when we are working with a low quality cast work. Brass to brass, or brass to copper should work on their own. At no point is it cool to use teflon tape inside or around an espresso machine. People at the bar were very much into the flaring tool. After a long period of disuse the left steam valve gaskets themselves were not sealing tight so for tonight the emergency shutoff remains closed.

 

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