Will a container drain at the same rate full as half full?

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David Brown

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David Brown asked the Naked Scientists:
   
Will a laundry tub drain at the same rate full as half full?

What do you think?
« Last Edit: 17/09/2011 14:30:03 by _system »

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Johann Mahne

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Will a landry tub drain at the same rate full as half full?
« Reply #1 on: 16/09/2011 11:50:09 »
Hi David,
My guess is no.
 Flow increases with pressure and pressure increases with the level of water in the tub.
10 meters equates to one bar, so there is a small difference in the tub as it empties.