30 六 2016 21:29 #1602 by John Church
cleaning was created by John Church
which procedure is best ,utrasonic or chemical

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29 十二 2017 16:23 #1684 by Mark Kolnsberg
Replied by Mark Kolnsberg on topic cleaning
In my opinion, ultrasonic is better as there is no chance of strong acidic chemicals attaching the metal of the horn. BUT,with that said, acid solutions have been used for generations and are still used effectively wo damage. Would be good to hear what repair folks and manufactures have to say.

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