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Re: technical: how to make an air diffuser
Try the plastic ones. Tetra makes an adjustable one, called luft I think.
Penn-Plax, I think, makes some small plastic ones for undergravel filters.
They are about an inch long, not much thicker than airline, and very cheap.
I think they may be your best bet for finding sonething inert without
finding someone to make one from glass.
Drummond Howard
Gaithersburg, Maryland
>From: gary l meyers <garymeyers at juno_com>
>Reply-To: killietalk at aka_org
>To: killietalk at aka_org
>Subject: Re: technical: how to make an air diffuser
>Date: Wed, 7 Nov 2001 17:42:43 -0800
>
>Some of the finest bubbles I have ever seen came from an air diffuser
>made from
>a section of grape vine -- another extremely fine difuser was made from
>balsa wood. You need a cap at one end with the tube in it and with the
>end grain of the wood or grape vine
>exposed at the other end it produces extremely fine bubbles. it should
>be from 3/4 to 1 inch
>long.
>
>Gary
>On Wed, 7 Nov 2001 16:23:27 +0200 "Tyrone Genade"
><Tgenade at AKAD_SUN.AC.ZA> writes:
> > Hi all
> >
> > I want to know how to make an air diffuser. A friend is
> > doing some experiments where he needs to aerate a
> > bacteria colony from the bottom up (very complex setup).
> > The beaker he is using only allows large bubles which
> > don't aerate the culture properly--- we want smaller
> > bubles. We were thinking of putting an air diffuser at
> > the bottom of the beaker and pumping air through it from
> > the bottom like now.
> >
> > Well, we have figured that the diffuser is simply fine
> > silica sand, but what is the resin used to bond it in
> > such a porous way?
> >
> > Does anyone have any ideas? The resin must be totaly
> > innert! This is for metabolic experiments and samples of
> > the culture will be loaded on an HPLC for analysis.
> >
> > Thanks
> > Tyrone Genade
> > tyronegenade at yahoo_com
> > http://www.tyronegenade.0catch.com
> >
> > *************************************************************
> > P450 Lab, Biochemistry Department
> > University of Stellenbosch, 7602, South Africa
> > Ph: +27-021-808-5876, fax: +27-021-808-5863
> > **********************************************************
> >
> > "No, the LORD has told us what is good. What He requires
> > of us is this: to do what is just, to show constant love,
> > and to live in humble fellowship with our GOD."
> > Micah 6:8
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> >
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