How much does it cost to build a pit latrine?
A simple VIP latrine with a 3 m deep pit costs between US$ 400 (unlined pit) to US$ 800 (lined pit) in informal settlement areas. To obtain a depth of 3 m in high water table areas, the pit has to be elevated, adding further construction costs.
What are ventilated improved pit latrines?
A ventilated improved pit latrine (VIP) is similar to a single pit latrine with addition of a vertical vent pipe. Through the aeration in VIPs, odour and fly nuisances are reduced. Excreta, along with anal cleansing materials (water or solids) are deposited into a pit.
What are the disadvantages of VIP latrine?
Besides the higher cost, the complex design and construction of a VIP latrine can also be a disadvantage. It is essential that a VIP latrine is installed correctly for proper operation. This is not always obvious to potential users who may wish to cut costs and so compromise the design.
Why is a ventilated improved pit latrine left without a cover?
The VIP latrine should not have a lid over the squat hole, which must be left open to allow air to flow into the pit. The end of the vent pipe above the shelter roof needs to be covered with a fly screen.
How much does it cost to build a pit latrine in Kenya?
The cost of building a toilet in Kenya ranges from Ksh. 70,000 to KSH. 300,000 for digging and fully furnishing a modern pit latrine.
How do I stop my pit latrine from smelling?
How to Keep Your Pit Toilet from Smelling
- #1: Use Vinegar. Natural vinegar has long been known to control foul odor.
- #2: Lime. Lime can also be used to eliminate the odor.
- #3: Use Air Freshener Tablets. Keep these air freshener tablets hanging near the pit.
- #4: Ventilation.
- #5: Integrate crushed BIOCHAR.
How long does a pit latrine last?
Typically, the pit is at least 3 m deep and 1 to 1.5 m in diameter, depending on the number of users. Deep pits can last up to 20 or more years.
Why is a VIP latrine called improved?
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. This type of latrine is called a ventilated improved pit (VIP) latrine.
What is the demerit of pit toilets?
The major advantage of PIT latrines is that faeces can be used to produce useful biomass. The main disadvantage is that they are often polluting groundwater if they are not placed carefully.
What is VIP latrine?
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. This type of latrine is called a ventilated improved pit (VIP) latrine.
What should be kept in mind to design a pit latrine?
Pit latrines should be constructed on a slight mound so they are higher than the surrounding ground and water at the surface will flow away from the hole. They should also have a lid that can be placed over the hole to reduce problems with flies and odours.
How do you dissolve poop in a pit latrine?
Regular moderate flushing of toilet with ordinary tap water is the answer.It does not require any chemical treatment. If someone does not flush his toilet properly then of course sulphuric acid / benzoic acid available in market to remove stains are good enough.
How does a ventilated improved pit latrine improve sanitation?
The ventilated improved pit ” V.I.P ” latrine offers improved sanitation by eliminating flies and smell, through air circulation. The addition of a chimney draws air currents into the structure and through squat hole. Odours rise through the chimney and disperse.
What is a single ventilated improved pit?
Single Ventilated Improved Pit (VIP) | SSWM – Find tools for sustainable sanitation and water management! The single VIP is a ventilated improved pit. 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.
Why is a screened vent pipe used in VIP latrines?
8. Thus the screened vent pipe has three important roles in the successful performance of VIP latrines: Ca)it eliminates fecal odors in the superstructure; Cb) it prevents most flies from entering the pit; and Cc) it prevents those flies bred in the pit from escaping.
Who designed the improved pit latrines?
The Design of Ventilated Improved Pit Latrines by D. Duncan Mara, Technology Advisory Group (TAG) UNITED NATIONS 99* 990 Ajoint United Nations Development Programme and World Bank Contribution to theInternational Drinking Water Supply and Sanitation Decade321.4—1989