Has anybody done patios of just plain decomposed granite?I have never seen this before They just poured a bunch of it down,raked it out, wet it ,used a compactor on it then set patio furniture on it. Is this a method of making a patio that will last?I would think it would wash away in heavy rain. They also did this patio right over an existing mature Palm tree at least 6" right over the grade around the tree. As far as I know that will eventually kill the tree . Anyway it seemed wierd and 1/2 a...zed to me.Am I correct in thinking this?