After heavy rain water mixed with sewage has been discharged into rivers and into the sea. Subsequent discussion has ignored the part played by the water closet. Sewage is a mixture of human bye-products with a large quantity of water. The odious mixture is made in the water closet. Without those monstrous engines of pollution and disease there would be no sewage.
At one time human effluvia were valuable commodities. The solid and semi-solid material was used as fertiliser. People collected it and sold it to functionaries called 'night soil collectors' who paid for it and re-sold it to grateful farmers. The nitrogenous liquid we produce was used in the tanning business.
Water closets should be replaced by some device to convert our products into dry, sterile briquettes we could sell to the successors of the night soil collectors.