Bio-slurry is a thick liquid that comes out of the biogas plant outlet and then flows into the slurry pits. As the slurry is ejected after a period of anaerobic digestion within the plant digester (about 50 days), thus, the slurry is sanitised, disinfected and turn the nutrients in more available form to plants. Therefore relative to farm yard manure which is normally piled up in the yard and less decomposed, bio-slurry contains readily available plant nutrients. A farming household who owns a biogas plant will have an advantage of a continuous supply of high quality manure for his crops.