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A possible cause of the smell is the water trapping between the "sand" particles.  In my former life (at Catawba Science Center), we used to bleach the sand on a regular basis, then flush it with water.  Of course you want to do this when the visitors are not present!  Other possibilities include the possibility of water getting on the floor if it's not draining.
 

-William

On Aug 28, 2010, at 3:04 PM, Lisa Chappa wrote:

> ISEN-ASTC-L is a service of the Association of Science-Technology Centers
> Incorporated, a worldwide network of science museums and related institutions.
> *****************************************************************************
> 
> We have a wonderful stream table that I am just starting to learn to use.  The 
> children love the sand and the concept, but there is a musty smell that we can 
> not seem to get rid of.  The sand is from omni finishing - specially made for 
> stream tables.  We drain the table at night and it sits dry for the 2 days a 
> week we are closed.
> 
> Any thoughts on what we could do to avoid the odor?
>  
> 
> Lisa Chappa
> Program Director
> Imaginarium of South Texas
> (956) 728-0404
> 
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William Katzman	 						Program Leader
[log in to unmask]				LIGO Science Education Center
225-686-3134							"Inspiring Science"
		





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For information about the Association of Science-Technology Centers and the Informal Science Education Network please visit www.astc.org.

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