Finally ready to place pavers. We had a 19' diameter hole dug 1' deep into hard clay.Retained ground with thick galvanized sheet metal and CCA 2' 2x2's. I have 18 6x6 pavers to set uprights on. My question is does anyone know the exact diameter of where the feet end up once the pool is filled? I plan on addressing the drainage issue with the hard clay by burying a piece of PVC pipe upright just below grade and fill/cover with gravel. These will be exactly in between paver's and I'm thinking about pouring Earth Right(soil conditioner that breaks up hard clay and allows drainage) down each pipe. I have read where the pool is not to be set on chemically treated soil, but im thinking the length of pipe will treat only small deep areas. Any thoughts about this?