Date: Fri Nov 17 15:14:11 2006

Author: Zigmund J. Peacock

Subject: Re: cleaning out water resonance columns

Post:
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Tom, raid the janitors closet a little porcelain cleaner [toilet bowl]
does a good job.
Shy of that use Liqui-Nox from Alkonox,inc it work on everything but
the worst crud.
Zig
Carter, Tom wrote:

> Folks,
>
> We got a set of the 1 meter long glass tubes with the drain
> fitting at the bottom that we use to show the resonance of a
> particular sound frequency. (You drain or fill the water in the
> tube, changing the length of the air column.) Our problem is that
> after a couple of uses, we always seem to wind up with gunk in the
> settling into the bottom of the tube, that almost completely blocks
> the drain. That really slows the rate at which you can change the
> water column and makes for a frustrating lab. Cleaning them out
> with a brush has been painful in the past and they gunk up rather
> quickly, even when we use DI water.
>
> Any of you old pros got a tip for me? How to clean them or how to
> stop them from gunking up? Anyone else had any experience with these?
>
> I'm thinking of walking them over the auto shop (the advantage of
> being a community college) and seeing if I can blow up the tubing and
> the tube all at once.
>
>
> tom


--
Zigmund Peacock
University of Utah/Physics
115 SOUTH 1400 EAST #201 Tel 801 581 6602
SALT LAKE CITY UT 84112-0830 Fax 801 581 4801

"We sleep safely in our beds because rough men stand ready in
the night to do violence to those who would do us harm"
-- George Orwell

"All that is necessary for the triumph of evil is that good
men do nothing!"
-- Edmund Burke


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Tom, raid the janitors closet a little porcelain cleaner [toilet bowl]
does a good job.
Shy of that use Liqui-Nox from Alkonox,inc it work on everything
but the worst crud.
Zig
Carter, Tom wrote:





Folks,

We got a set of the 1 meter long glass tubes with
the drain fitting at the bottom that we use to show the resonance of a
particular sound frequency. (You drain or fill the water in the
tube, changing the length of the air column.) Our problem is that
after a couple of uses, we always seem to wind up with gunk in the
settling into the bottom of the tube, that almost completely blocks
the drain. That really slows the rate at which you can change the
water column and makes for a frustrating lab. Cleaning them out with
a brush has been painful in the past and they gunk up rather quickly,
even when we use DI water.

Any of you old pros got a tip for me? How to
clean them or how to stop them from gunking up? Anyone else had any
experience with these?

I'm thinking of walking them over the auto shop
(the advantage of being a community college) and seeing if I can blow
up the tubing and the tube all at once.


tom



--
Zigmund Peacock
University of Utah/Physics
115 SOUTH 1400 EAST #201 Tel 801 581 6602
SALT LAKE CITY UT 84112-0830 Fax 801 581 4801

"We sleep safely in our beds because rough men stand ready in
the night to do violence to those who would do us harm"
-- George Orwell

"All that is necessary for the triumph of evil is that good
men do nothing!"
-- Edmund Burke




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