Oxfam TIGER WORM TOILET Operation Manual Download | Manualshive

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TIGER WORM TOILET

OPERATION MANUAL

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Summary of Contents for TIGER WORM TOILET

Page 1: ...TIGER WORM TOILET OPERATION MANUAL ...

Page 2: ...2 CONTENTS 03 Operation of Tiger worm Toilets 08 Emptying 09 User Operation and Training 10 Monitoring of TWT 12 Troubleshooting of TWT 13 Frequently Asked Questions FAQs 15 Acknowledgements ...

Page 3: ...sible under the surface What does vermicompost look like Vermicompost will be dark and bobbly bumpy and should be building up around the sides edges of the pit When using a stick to look under the surface it should still be dark and a bit soil like If it is a bright colour under the surface then it is not vermicompost but accumulating fresh faeces How to know when to empty When the level of faeces...

Page 4: ...round the edges with white mould fungus growing on top which is ok OK Wood shavings bedding layer Fresh faeces under the pipe but would be better in the centre Suggests that the inlet pipe was not set up correctly Patches of dry vermicompost with white mould fungus growing on top which is ok READY TO EMPTY Fresh faeces is building up showing that the pit is no longer functioning correctly Dig unde...

Page 5: ...t is functioning Fresh faeces appears to be building up a little Check again in 1 3 weeks depending on rain if the amount of fresh faeces is reducing The cockroaches are not harmful for the worms but if the pit is not well sealed they can leave and transmit diseases Make sure the pit and latrine are well sealed OK Coconut husk bedding layer Fresh faeces in the centre around 15 coverage Vermicompos...

Page 6: ...ee if the worms process the fresh faeces and the pit become less wet Then empty the darker vermicompost at the edges OK Coconut husk bedding layer Slightly too dry at the edges but ok Vermicompost can be seen building up like dark soil around the edges Fresh faeces is building up a little Try to not use for a few days and see if the fresh faeces reduces Too Wet It doesn t look like fresh faeces wh...

Page 7: ...pit is functioning well Too Dry Coconut husk bedding layer Only a little fresh faeces and quite dry suggesting that not enough people are using the toilet Check how many users and that they are using at least 1 5 litres per time Dark soil like vermicompost can be seen in the pit OK Dark and bobbly vermicompost can be seen around the edges The amount of fresh faeces is ok The white colour is a fung...

Page 8: ... that some worms will be removed from the pit Case Study Lesson from Myanmar Pit Flooding In one of the project sites where the individual household TWTs were located many of the pits became very saturated during the rainy season and stopped working as TWTs The field team reported that this location experiences a high ground water table during the rainy season and that in some areas the infiltrati...

Page 9: ... toilets as a reminder Key messages include Urinate conduct anal cleansing and defecate in the hole not around it Use a cup of water to flush the toilet after every use Use the toilet brush to clean any faeces around the hole to avoid bad smell and flies Avoid using detergents that can kill worms use plain water to clean the latrine Always store water in the toilet for flushing Dispose children s ...

Page 10: ...g used If the issues they identify can be captured and shared quickly then they can be dealt with in good time They will regularly fill out monitoring forms for each of the toilets Systematic Survey Conducting a systematic survey every three months is useful to establish filling rates trends and provide clear evidence of the performance of the toilets Systematically sampling every second toilet ca...

Page 11: ... Tiger toilet is a flushing system a water drainage system 2 The worms in the pit transform the faecal matter into vermin compost 3 The toilet does not smell has no flies 4 Do not use any disinfectants detergents bleaching agent during cleaning the toilet 5 Use only water when cleaning the toilet 6 Do not drop stone plastics and menstrual cleaning pads into the opening of the pit 7 Do not exceed t...

Page 12: ...possible The pit looks too dry Check if the numbers of users is as expected are there too few Advise the toilet users that they need to use more water to ensure the TWT benefits and keep it functioning correctly The bedding looks too wet Check if the numbers of users is as expected are there too many Are people using more water than expected and designed for Could rainwater be coming in through cr...

Page 13: ...e placed in the pit People can start using the pit up to a month before the worms are added to the pit How much do worms cost This varies significantly by country Identify and contact possible worm suppliers to confirm the cost and available quantity before deciding to use TWTs How to transport worms from the supplier to the site See the worm transportation guide in the annex How does desludging f...

Page 14: ... of the aeration sources The biodigester is also designed not to allow the system to go anaerobic What is the lifespan of worms in specific tanks Scientists predict that the average lifespan under field conditions is four to eight years still most garden varieties live only one to two years How do you see the management of tiger toilets at a larger scale How will they be managed At larger scale th...

Page 15: ...Bangladesh and India The experience gained and lessons learnt about design operation and implementation are outlined in this manual It is with thanks to the following donors for their support to Oxfam Waste to Value project funded by the Bill Melinda Gates Foundation through UNHCR Elrha s Humanitarian Innovation Fund a grant making facility supporting organisations and individuals to identify nurt...

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