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Double Ventilated Improved Pit

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'''The Double VIP has almost the same design as the [[Single Ventilated Improved Pit|Single VIP]] with the added advantage of a second pit that allows the technology to be used continuously and allows for safer and easier emptying.'''

To keep the Double VIP free of flies and odours, regular cleaning and maintenance is required. Dead flies, spider webs, dust and other debris should be removed from the ventilation screen to ensure a good flow of air. The out of service pit should be well sealed to reduce water infiltration and a proper alternating schedule must be maintained.

==Acknowledgements=={{:Acknowledgements Sanitation}} ==References and external links==

* Mara DD. (1984). The Design of Ventilated Improved Pit Latrines (UNDP Interreg. Project INT/81/047). The World Bank+ UNDP, Washington. (A good reference for detailed Double Pit VIP design information.)

* The World Bank (1986). Information and Training for Low-Cost Water Supply and Sanitation (UNDP Project INT/82/002). The World Bank, Washington.

 

==Acknowledgements==

{{:Acknowledgements Sanitation}}

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