This can be vital in the campaign against flooding. When we build houses, we are effectively damaging the draining of the land, preventing water from moving as it would have previously done by creating an impenetrable layer of concrete. It is, therefore, vital that construction companies ensure an adequate drainage system which usually consists of pipes under the ground. The water needs to be carried far enough away or redirected to join an exciting waterway and adding a Duckbill check valve to the endpoint ensures that the water is not in any danger of returning to the source.
