The campaign Toilet Etiquette aims to increase public knowledge on what may and may not be washed down the drain, thereby improving the quality of sludge produced in the region and reducing the amounts of nutrients and harmful chemicals released into lakes and seas. With improved sludge quality phosphor, a nutrient and a limited natural resource, can be recycled and used as a farmland fertilizer. Environmentally harmful substances hurt plants and animals and in the long run humans. They also disrupt the wastewater treatment process, thereby causing a higher discharge of nutrients into our environment. Everyone participating in the campaign is helping to recycle nutrients!