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Single Pit

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Another variation is the unlined shallow pit that may be appropriate for areas where digging is difficult. When the shallow pit is full, it can be covered with leaves and soil and a small tree can be planted. This concept is called the Arborloo and is a successful way of avoiding costly emptying, while containing excreta, and reforesting an area. The Arborloo is discussed in more detail on the [[Fill and Cover - Arborloo]] section.

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{{procontable | pro=

- Can be built and repaired with locally available materials.<br> - Does not require a constant source of water.<br> - Can be used immediately after construction. <br> - Low (but variable) capital costs depending on materials. | con=- Flies and odours are normally noticeable. <br> - Sludge requires secondary treatment and/or appropriate discharge. <br> - Costs to empty may be significant compared to capital costs. <br> - Low reduction in BOD and pathogens.

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