recently a group of community development staff from edf, a lao ngo, visited us. they have a question; 'what happens if a dct is flooded. will it still compost. what can be done with it. what about danger.'
Flooding is not good for dry composting toilets but it does happen and it can be coped with. There are 2 aspects to flooding: preventing the spread of disease and composting.
- First, don't build a dry composting toilet in an area where flooding occurs such as adjacent to a low lying river. Second, make sure that even in an area where flooding does not occur, build the dry composting toilet slightly elevated and with an anti-capillary barrier to prevent ground moisture from being sucked up into the the composting feces.
- When flooding does occur, care must be taken to provide for a clean water supply until the danger of contamination of the water supply has passed. If possible, contain any fecal matter that has leaked out.
- Finally, dry out the composting chamber. Open the access door and the deposit hole cap to provide good air flow. This may take a few weeks.