- Requires constant source of cover material (soil, ash, leaves, etc.) <br> - Garbage thrown in the pit may ruin reuse opportunities of Compost/EcoHumus.
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==Adequacy==
Occasionally, the mounded material beneath the toilet hole should be pushed to the sides of the pit for an even distribution of materials. Depending on the dimensions of the pits, materials should be emptied every year.
==ManualManuals, videos, and links==
This [http://www.bvsde.paho.org/bvsacd/cd66/ToiletsCompost/cap4.pdf document] contains a lot of information about building, maintaining a fossa alterna.
==Acknowledgements==
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==References and external links==
* Morgan, P. (2007) Toilets That Make Compost: Low-cost, sanitary toilets that produce valuable compost for crops in an African context. Stockholm Environment Institute, Sweden. Available: http://www.ecosanres.org (Step-by-step guide for building a Fossa Alterna.)
==Acknowledgements==
{{:Acknowledgements Sanitation}}