Well a relative is, has a soak-away dug in back garden for rainwater from a rear extension in Welling , Kent.
Its over 15 foot deep probably nearer 17-18ft and so far nothing but clay, there is also a slight seepage of water at about 15ft suggesting its already below water table. Any suggestion how to proceed , I suggested a small post hole borer to test further depth since it should be quicker than digging but what if all it reveals is more clay.?
Its over 15 foot deep probably nearer 17-18ft and so far nothing but clay, there is also a slight seepage of water at about 15ft suggesting its already below water table. Any suggestion how to proceed , I suggested a small post hole borer to test further depth since it should be quicker than digging but what if all it reveals is more clay.?