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Double Ventilated Improved Pit

5 bytes added, 20:12, 26 September 2013

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The superstructure may either extend over both holes or it may be designed to move from one pit to the other. In either case, the pit that is not being filled should be fully covered and sealed to prevent water, garbage and animals (and/or people) from falling into the pit. The ventilation of the two pits can be accomplished using one ventilation pipe moved back and forth between the pits or each pit can be equipped with its own dedicated pipe. The two pits in the Double VIP are continually used and should be well lined and supported to ensure longevity.

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- Longer life than Single VIP (indefinite if maintained). <br> - Potential for use of stored faecal material as soil conditioner. <br> - Flies and odours are significantly reduced (compared to non-ventilated pits). <br> - Does not require a constant source of water. <br> - Suitable for all types of user (sitters, squatters, washers and wipers). <br> - Can be built and repaired with locally available materials <br> - Can be used immediately after construction. <br> - Small land area required. | con=

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