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Unread 05/06/2012, 08:39 PM   #2
bertoni
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Join Date: Mar 2002
Location: Mountain View, CA, USA
Posts: 88,616
A surface film can cause this problem, IME. Some paper towels floated on the water surface for a second or two can help reduce the problem, if that's the cause. Getting some rippling on the surface can prevent the buildup.


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Jonathan Bertoni
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