I complained to the site owner regarding the Elsan point ,when I attempted to empty my Toilet cassette,it was a small aperature for disposing the effluent it was severely blocked and filled the concrete base on the surface ,with effluent, when I attempted to hose it with water , it became worse ,the owners response to this problem was , that he had a holding tank for the waste , and it needed emptying , and some other person also complained about the same problem , the owner did not attempt to resolve this issue , In 40 years of Caravanning we have never encountered anything so disgusting before