Perched water table

Michael Mace
Wed, 04 Dec 2013 10:29:10 PST
Jim wrote:

>> The problem is capillary action holding water in the fine spaces in the
medium.  Until the hydrostatic pressure of the vertical column of water
exceeds the capillary attraction/surface tension of the water at the bottom
of the medium, the water won't flow down and out.

This is an interesting discussion.

If I'm following correctly what everyone said, I wonder if the inverted cans
might work better if there were no sheet of fabric placed over them. As long
as there was soil around the cans, and the soil was uniform throughout the
pot, would the soil around the cans draw down the water from above?

San Jose, CA

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