Characterisation of On-Site Sanitation Material and Products: VIP Latrines and Pour-Flush Toilets VOLUME 1: CHARACTERISATION OF FAECAL SLUDGE FROM POUR-FLUSH LATRINES Characterisation of On-Site Sanitation Material and Products: VIP Latrines and Pour-Flush Toilets VOLUME 1: CHARACTERISATION OF FAECAL SLUDGE FROM POUR-FLUSH LATRINES Posted in .