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I have informed the charity about your recommendations and we are going to design and build a concrete apron for an existing pump that channels the spilled water towards a small garden which will be maintained by the children that attend a child care centre in the area. I am unsure about how to go about designing the apron as all the current slabs are broken, probably due to the lack of ground stability as the soil is sandy. Are there any standards for concrete apron dimensions in sandy soils cast insitu that would be more durable than the precast slabs already in place?
Jennifer