Sharing is not just caring, it's also about giving credit - add this image to your page and give credit to the talented photographer who captured it.:
bacteria building construction damage dirty ecological ecology elimination environment environmental factory fecal filter flow grey hole home house industry installation leaking lid liquid mobilestock open outdoors pipe pollution puddle purification sanitary sanitation sedimentation septic sewage sewer sludge smell storage substance system tank toxic treat treatment underground unpleasant vertical waste wastewater water