Dig anywhere in Rincon and you find sand — pale, fast-draining Coastal Plain sand that swallows a summer downpour in an hour and then makes a dry August week hard on roots. Ground Effects LLC works with that ground instead of against it, mowing at heights the turf can carry, edging drives and walks down to a hard line, trimming the difficult margins and hauling off the trimmings. Lawns on this side of the Savannah River ask for patience in the heat and a steady hand once the growth comes on. Nothing looks better from the mailbox than a yard whose edges hold up sharp the whole way around. Springfield, Guyton, Clyo and Eden are all within reach.