Tell a friend about us, add a link to this page, or visit the webmasters page for free fun content. Also available casa house plans casita plans special thanks to hector rubio for his service and help in creating these plans. Problems associated with the use of pit latrines in blantyre. Any other flush or pourflush latrine, an open pit latrine, bucket latrine, a hanging latrine, or open defecation is unimproved and not scored toward the mdg target. Ventilated improved pit vip latrines moi ot 3 introduction the addition of a vent pipe to a simple pit latrine is one way of reducing the nuisance of flies in the cubicle if the cubicle is kept clean and dark. There is a great demand for improved sanitation in many. When the pit becomes full the toilet can be moved to an adjacent new pit, and the old pit covered over. The residents ranked safety and privacy as the most important factors that. It seeks to clarify the current state of ventilated improved pit latrine design, which often includes a bewildering set of design options such as single or twin pits, emptiable or nonemptiable, lined or unlined and raised above ground level or unraised. Ventilated improved pit latrine vip waterless pit latrine ventilated by a pipe that extends out of the pit to above the latrine roof. December 1, 2004 downloads pdf available on line at.
Pdf redesigning the ventilated improved pit latrine for. The design of ventilated improved pit latrines pseau. Significantly, public and other shared facilitiesthose used by two or more householdsare excluded from the definition of improved sanitation regardless of. Ventilated improved pit latrine practical action technical.
A vip latrine was developed in zimbabwe in the 1970s as an odorless, fly free toilet suitable for use in both rural and lowdensity. Latrine design and construction lifewater international. It is an improvement over the single pit because continuous airflow through the ventilation pipe vents odours and acts as a trap for flies as they escape towards the light. Single ventilated improved pit vip sswm find tools. Ventilated improved pit latrine which is an improved sanitary household solution for human excreta. This paper describes the most recent developments in the design of ventilated improved pit vip latrines in zimbabwe. Improved traditional pit latrine with handwashing facility 6908553053. Ventilated improved pit latrine how is ventilated improved. Zimbabwean brick designs this paper describes the most recent developments in the design of ventilated improved pit vip latrines in zimbabwe. Problems associated with the use of pit latrines in.
Pdf redesigning the ventilated improved pit latrine for use in built. P latrine offers improved sanitation by eliminating flies and smell, through air circulation. How to build a ventilated improved pit latrine howtopedia. The ventilated improved pit latrine vip is a pit latrine with a black pipe vent pipe fitted to the pit and a screen flyscreen at the top outlet of the pipe. Use a motorized tanker with latrine with soil, and build latrine using a spade and. Pdf redesigning the ventilated improved pit latrine for use. This study was conducted to identify the gaps that exist between ventilated improved pit vip latrine construction practices in cape coast, ghana, and conventional technical guidelines, and to assess how any noncompliance with technical guidelines influences the users perception of odour and fly nuisances.
Furthermore, it was established that all members of a household were more likely to use a latrine if it was an improved ventilated latrine aor2. A vip latrine was developed in zimbabwe in the 1970s as an odorless, fly free toilet suitable for use in. P latrine offers improved sanitation by eliminating flies and smell. More sophisticated pit latrines may include a floor plate, or ventilation to reduce odor and fly and mosquito breeding called ventilated improved pit latrine or vip latrine.
Ventilated improved pit vip latrines loughborough university. Pit latrine with slab waterless pit latrine covered by a slab or platform fitted with a hole or seat. The ventilated improved pit latrine is an improvement on standard pit latrines that eliminates flies and odour. A straight vertical ventilation pipe is present in a ventilated improved pit vip toilet reed, 2014a that extends 0.
They use similar technology, the main difference being that the pit of the roec is wholly offset from the slab and connected to it by achute. A pit latrine is a simple and inexpensive toilet, minimally defined as a hole pit in the ground. Preparation of standard engineering drawings, specifications and guidelines for ventilated improved pit latrines in south africa. The preferred sanitation technology in swaziland is the ventilated improved pit latrine vip. Many military units, if intended for extended use, place basic shelters and seating over the pits. The addition of a chimney draws air currents into the structure and through squat hole. This improved version, from which its name is derived, was designed to find a solution to, or at least reduce, this problem. Apr 17, 2014 any other flush or pourflush latrine, an open pit latrine, bucket latrine, a hanging latrine, or open defecation is unimproved and not scored toward the mdg target. Nov 30, 2012 the preferred sanitation technology in swaziland is the ventilated improved pit latrine vip. Latrine design and construction making culturallyappropriate latrines. Vent pipe design guidelines, tag technical note no. Two techniques controlling lmproved ventilated pit. It essentially involves providing the inside of the latrine with a vertical ventilation pipe, referred to as a vent, the top of which is fitted with a finemesh insect screen. It comprises a stable foundation and flooring, a dark and sealed pit, and a ventilated pipe extending at least half a meter above the roof of the latrine, fitted with a fly screen.
Shared sanitation versus individual household latrines. This has now been improved, with even greater success, as peter morgan and ephraim chimbunde report. Design and construction of household ventilated improved pit. Single ventilated improved pit vip sswm find tools for. Is long and more often than not 15 to 20 years, and sometimes up to 25 to 30 years. The air inlet will be more effective if it is facing the prevailing wind. Vip latrines effectively control odour and flies while still allowing users to clean themselves with hard materials such as newspaper and leaves which may not suitable for. Wall slab ventilation roof frame soap water tank pit any type of improved latrine that breaks the contact between feces and the environment will be of bene. May 01, 20 ventilated improved pit latrine vip waterless pit latrine ventilated by a pipe that extends out of the pit to above the latrine roof. However, the most effective system to prevent odours is the socalled vip ventilated improved pit latrine. Lining the pit prevents it from collapsing and provides support to the superstructure.
Design and construction of household ventilated improved. Use a motorized tanker with latrine with soil, and build latrine using a spade and mapet with a manpowered a vacuum pump. Pit latrine treatments, blair toilets and vip, ventilated. This work is licensed under a creative commons attribution 4. The vip ventilated improved pit latrine system is an excellent toilet system, as the vip vent. Through the aeration in vips, odour and fly nuisances are reduced. The distinctive feature that gives the vip latrine its name is the vent pipe installed into the pit, which is used to exhaust the foul odour from the pit and control flies figure 20. There are a number of designs to suit different situations but they all work in much the. The options include the ventilated improved pit toilet in all its variations, composting toilets, separation toilets, dehydration type toilets, onsite wet systems such as aquaprivies and septic tanks, and a range of full water borne systems. This technical note sets out preliminary guidelines for the design and construction of vent pipes for ventilated improved pit vip latrines. One modification to the basic pit latrine is the ventilated improved pit latrine, or vip latrine. The vip latrine is an improvement over the simple dry pit latrine. So building and using a latrine any type at all is the most important step to take.
A ventilated improved pit latrine the ventilated improved pit v. Pdf scientific support for the design and operation of. See fact sheet a8 ventilated improved pit latrines g service life. The introduction of a ventilation pipe in the pit toilet, as shown in figure 3, is a variation of the pit toilet concept. Further details of countryspecific deslgns currently for botswana, tanzania and zimbabwe are given in other technical notes in this series. Ventilated improved pit vip latrines the addition of a vent pipe to a simple pit latrine is one way of reducing the nuisance of flies in the cubicle if the cubicle is kept clean and dark. Ventilated improved pit latrine simon farmer practical. The addition of a vent pipe to a simple pit latrine is one way of reducing the nuisance of flies in the cubicle if the cubicle is kept clean and dark. A8 dry selfventilated improved pit latrines vip, simple or twin pit. They do not have smells when the wind blows over the vent pipe all the bad smeils are removed. A vip latrine differs from a traditional pit latrine in that it has a tall vertical vent pipe which has a fly screen fitted at its top. This type of latrine is called a ventilated improved pit vip latrine. Double alternating pits are sometimes utilized referred to as double vip toilets, especially when the pits are shallow.
While specific technologies such as the ventilated improved pit latrine vip rejuvenated access to improved sanitation locally and globally, the use of social marketing strategies, such as the participatory health and hygiene education phhe, provided a strong impetus to. Pit toilets latrines global water pathogen project. Ventilated improved pit vip latrines resources susana. Manual removal of the humuslike material in the pits, which is at least two. This improved version, from which its name is derived. Own ership of property, poverty and theft in the area significantly influenced the type and structural condition of the latrine. Ventilated improved pit vip and reeds odourless earth closet roec latrines these are both improved types of pit latrine which aim to remove smells and flies from the latrine using a vent pipe. The vip latrine was developed to overcome the problems of odour and fly breeding commonly found in unvented pit latrines. Ventilated improved pit vip toilet systems installed in south africa are constructed according to a. Empty using a latrine by hand mechanical means tanker backfill the top of the dig out the contents of the use a simple device e. Pdf on mar 14, 2018, babatunde femi bakare and others published scientific support for the design and operation of ventilated improved pit latrines and the efficacy of pit latrine additives. Information on improved latrine options 11 part 3 what do we mean by latrine.
Latrine design and construction 5 sample latrine design and construction schedule session day 1 day 2 day 3 day 4 day 5 9. Excreta, along with anal cleansing materials water or solids are deposited into a pit. A8 dry selfventilated improved pit latrines vip, simple. Vip latrines are an improvement to overcome the disadvantages of simple pit latrines, e. The ventilated improved pit latrine was the commonest technology used by 47 % of households with private latrines. The biological activator is packed in 1kg packs primarily for the pit latrine blair toilets and vip, ventilated improved pit toilet and septicconservancy tank market. The pit latrine is a natural, safe, and clean toilet system, with pit contents decomposing naturally into compost over time.
Factors affecting the utilisation of improved ventilated. Ventilated improved pit vip toilet systems installed in south africa are constructed according to a wide variety of designs and with many different types of materials, with a corresponding. The ventilated improved pit latrine or vip latrine differs from a standard improved latrine due to the addition of a vent pipe figure 5. A ventilated improved pit latrine vip is similar to a single pit latrine with addition of a vertical vent pipe.