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Mineral Oil and Tuba smell?

Postby Radar » Sat Jun 01, 2019 10:28 am

My beater Tuba (a 3 valve 7/8th Jupiter) that I use for outside gigs like beer tents where I don't want to use a my good Tuba, or a Sousaphone (because the rest of the group are using upright bell tubas), has developed a bad odor, I don't think I've ever had a horn smell this bad (The Tuba is soaking in a tub full of water with Dawn detergent as I type this). About 6 months ago I gave the horn a good cleaning, and took the advice of an experienced player and coated the inside of the horn with mineral oil (something I had never done before) could the mineral oil be responsible for the smell I'm experiencing? Possibly it's just the combination of the beer and brats I consume while using it, but I don't have that problem with my sousaphone that gets similar treatment.
Retired Army Reserve 98th Div. Band: Euphonium, Trombone, Tuba, Bass Guitar
Miraphone 186 CC
Conn 36K Sousaphone
Euphonium: Yamaha YEP-321 (modified with Euro-shank receiver with Lehman M mouthpiece)
Trombones:Yamaha 612 Bass, Conn 88H
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Re: Mineral Oil and Tuba smell?

Postby Tubamaphone » Mon Jun 03, 2019 8:05 am

Well, as the scientific method would dictate, the mineral oil is the only variable. Any change after using dawn to clean?
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Re: Mineral Oil and Tuba smell?

Postby Donn » Mon Jun 03, 2019 9:14 am

I think science would also require us to put forth a plausible hypothesis. So we'd be asking him to say with a straight face that mineral oil really might be able to cause that smell. The test to confirm or falsify the hypothesis would probably require him to alternate one year with, one year without for a few years.

It sounds like this tuba may go for some time without getting played, certainly enough to get pretty dry, but if there was a lot of oil in there, it may have surrounded some aqueous slime and kept it going for a while under anaerobic conditions. I guess that's why for the authentic version of this treatment, they use milk. I'm sure that doesn't smell!
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Re: Mineral Oil and Tuba smell?

Postby Radar » Mon Jun 03, 2019 2:08 pm

Tubamaphone wrote:Well, as the scientific method would dictate, the mineral oil is the only variable. Any change after using dawn to clean?


The soak in dawn and a good bore brushing, did make the smell go away. I was surprised that I didn't get a lot of slime or gunk out of the horn. This is a horn that goes for long periods of time without being played.
Retired Army Reserve 98th Div. Band: Euphonium, Trombone, Tuba, Bass Guitar
Miraphone 186 CC
Conn 36K Sousaphone
Euphonium: Yamaha YEP-321 (modified with Euro-shank receiver with Lehman M mouthpiece)
Trombones:Yamaha 612 Bass, Conn 88H
Radar
3 valves
3 valves
 
Posts: 301
Joined: Sat Dec 01, 2012 2:51 pm
Location: Rochester NY


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