About 1850 farmer Wouter Sluis from De Beemster discovered something strange in the water that came from the Norton well. As it came to the surface, the water looked slightly milky white. If you put it in a bucket and let it stand for an hour, the water became clear. The gas bubbles escaped from the water, leaving it clear again. At Westerhem Agricultural Museum there is an almost exact replica of the marsh gas installation made in 1895. The major different is the well pipe that used to be made of wood is now produced in PVC.