Before revision: The characteristics of fecal sludge may be influenced by: Methods, techniques and the skill levels of personnel conducting the desludging; The efficiency of the different types of equipment used in desludging; Seasonality - presence of groundwater or flood water that may infiltrate into tanks and dilute the contents; The last time the tank was desludged (age of fecal sludge).
After revision: The characteristics of fecal sludge may be influenced by: Methods, techniques and the skill levels of personnel conducting the desludging; The efficiency of the different types of equipment used in desludging; Seasonality – presence of groundwater or flood water that may infiltrate into tanks and dilute the contents; The last time the tank was desludged (age of fecal sludge).