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I've just changed my cleaning fluid in my Elma cleaner to the Elma WF Pro, I've done one movement, the fluid was clear but now it's gone blue. Does anyone know of this is normal? Or should I change it?

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How long did you leave it in the cleaning fluid? I was just now looking at their PDF not seeing what I was expecting to see. I've experienced with ammonia-based cleaners if you leave it too long it will remove the copper from the brass the solution turns blue the brass gets a kind of frosty look to it. But this is usually when you go way past the acceptable cleaning time.

http://www.elma-ultrasonic.com/fileadmin/downloads/CleaningAgents/ProductInformation/GB/P_wf pro_GB.pdf

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