G’day Mark; thanks for your comment. About the only thing I
don’t use my Rotring Ultrasonic for these days is cleaning
drawing pens! And yes, when I did use it for that purpose, I
rapidly learnt that one doesn’t use it with hot water. I’ve had
it around 6 years and it still works fine. I understand some
dentists use an ultrasonic for cleaning false teeth with peroxide
and ammonia - but it wouldn’t do to have the cleaner hot for that
either. Cheers, –
/\
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/ / Johnb@ts.co.nz
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(_______) In sunny temperate Mapua NZ -
Autumn’s here and today’s a cheerful day.