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Uploaded on Jul 29, 2011
How to build an 8 inch wall for a raised garden bed using gravel and cement CONCERNED about pH: Cement is the oldest building material around....water ducts in Rome! The only thing might leach out is lime...which might make the soil a bit alkaline at the very worse....cured by adding lime, if even necessary.... after 10 months the pH goes back to normal....not really an issue....!