sentences:  Instead they flow via the Sixteen Foot Drain to Three Holes and thence via the Middle Level Main Drain and the pumping station at Wiggenhall St Germans to the sea.The Sixteen Foot Drain connects to the Forty Foot drain above Horseway Lock.The main land drain in Holland Fen (as distinct from the River Witham, which is designed to carry water past the fens without being part of them) is known as the North Forty Foot Drain.