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{|style="float: left;"|{{Language-box|english_link=Urine_Diverting_Dry_Toilet|french_link=Toilettes_sèches_avec_séparation_d’urine|spanish_link=Retrete_Seco_con_Desvio_de_Orina|hindi_link=coming soon|malayalam_link=coming soon|tamil_link=coming soon | korean_link=coming soon | chinese_link=Coming soon | indonesian_link=Coming soon | japanese_link=Coming soon}}|}<!-- table at top of page with logo, picture, Application level, Management level and input-output tables --br><br>{|width="100%"|style="width:25%;"|{{santable_shortsantable_short_new|

Input1=Faeces|Input2=Urine |Input3=Anal cleansing waterCleansing Water| Input4= Dry Cleansing Materials |Input5=|Output1=Faeces| Output2=Urine | Output3=Anal cleansing water Cleansing Water | Output4= Dry Cleansing Materials | Output5=

<br>----<br> [[Image:Icon_urine_diverting_dry_toilet.png|right|95px80px]][[Image:dry_urine_diversion_toilet.png|thumb|right|150px200px|[[Dry urine diversion toilet |Dry urine diversion toilet]], in the Philippines (for credits, click on the photo)]]

<br>The UDDT toilet is built such that urine is collected and drained from the front area of the toilet, while faeces fall through a large chute (hole) in the back. Depending on the Collection and Storage/Treatment technology that follows, drying material such as lime, ash or earth should be added into the same hole after defecating. Men, as  ===Design Considerations=== '''It is important that the two sections of the toilet are well as women, need to sit while urinating separated to ensure that : a) faeces do not fall into and clog the urine is diverted into collection area in the correct channel. front, and that

It is important that the two sections of the toilet are well separated to ensure that a) faeces do not fall into, and clog the urine collection area in the front, and that b) urine does not splash down into the dry area of the toilet. '''

Water used for There are also 3-hole separating toilets that allow anal cleaning must cleansing water to go into a third, dedicated basin separate from the urine drain and faeces collection. Both a pedestal and a squat slab can be kept used to separate urine from faeces depending on user preference. Urine tends to rust most metals; therefore, metals should be avoided in order not the construction and piping of the UDDT. To limit scaling, all connections (pipes) to dilute faeces or pollute urine storage tanks should be kept as short as possible; whenever they exist, pipes should be installed with pathogens. This requires at least a separate facility for anal cleaning1% slope, and sharp angles (90°) should be avoided. Small amounts A pipe diameter of anal cleaning water can be infiltrated50 mm is sufficient for steep slopes and where maintenance is easy. Larger volumes need to be treated diameter pipes (together with grey water> 75mm) to should be used elsewhere, especially for minimum slopes, and where access is difficult. To prevent ground water pollutionodours from coming back up the pipe, an odour seal should be installed at the urine drain.

Both <br>{| border="1" cellpadding="5" cellspacing="0" align="none"|-! width="50%" style="background:#efefef;" | Advantages! style="background:#f0f8ff;" | Disadvantages|-| valign="top" |- Does not require a pedestal constant source of water <br>- No real problems with odours and a squat slab can be vectors (flies) if used to separate urine from faeces depending on user preferenceand maintained correctly (i.e. Urine diverting kept dry toilets can ) <br>- Can be made out of ceramicbuilt and repaired with locally available materials <br>- Low capital and operating costs <br>- Good for areas where pit latrines don't work (high water table, ferrocollapsing/rocky soils). <br>-cement, fibreLarge scale nutrient recovery is a realistic possibility. <br>-enforced materialsSuitable for all types of users (sitters, or strongsquatters, durablewashers, plastic wipers)| valign="top" |- Prefabricated models not available everywhere <br>- Requires training and painted wood. It acceptance to be used correctly <br>- Is prone to misuse and clogging with faeces <br>- The excreta pile is important visible <br>- More expensive that the surface is smooth low-cost latrine options <br>- Men usually require a separate Urinal for optimum collection of urine <br>- Special child seats have to be provided to keep their urine and hardenedfaeces separate.|}

{{procontable | pro===Appropriateness===- Does not require a constant source of water <br>- No real problems with odours The UDDT is simple to design and vectors (flies) if used build, using such materials as concrete and maintained correctly wire mesh or plastic. The UDDT design can be altered to suit the needs of specific populations (i.e. kept dry) <br>- Can be built and repaired with locally available materials <br>- Low capital and operation costs <br>- Large scale nutrient recovery is a realistic possibilty. <br>- Suitable , smaller for all types of users (sitterschildren, squatterspeople who prefer to squat, washers, wipersetc.) | con= - Requires education and acceptance to be used correctly <br>- Is prone to clogging with faeces and misuse <br>-Special child seats have to be provided to keep their urine and faeces separate. }}

==Adequacy=Health Aspects/Acceptance===The UDDT is simple not intuitive or immediately obvious to design and build some users. At first, users may be hesitant about using such materials as concrete it, and wire mesh or plasticmistakes made (e.g. The UDDT design can be altered to suit , faeces in the needs urine bowl) may deter others from accepting this type of specific populations (itoilet as well.eDemonstration projects and training are essential to achieve good acceptance with users. smaller for children, people who prefer For better acceptance of the system and to squatavoid urine in the faeces collection bowl, etcthe toilet can be combined with a Urinal (U.3) They are appropriate for almost every climate, allowing men to stand and urinate.

==Health Aspects / Acceptance=Operation & Maintenance===The A UDDT is not intuitive or immediately obvious slightly more difficult to keep clean compared to other toilets because of both the lack of water and the need to separate the solid faeces and liquid urine. No design will work for everyone and, therefore, some users. At firstmay have difficulty separating both streams perfectly, users which may be hesitant about using it result in extra cleaning and mistakes (emaintenance.g. faeces Faeces can be accidentally deposited in the urine bowl) may deter others from accepting this type of toilet as well. Education section, causing blockages and demonstration projects are essential in achieving good acceptance with userscleaning problems.

==Maintenance==A UDDT is slightly more difficult to keep clean compared to other toilets because All of both the lack of water surfaces should be cleaned regularly to prevent odours and the need to separate minimize the solid faeces and liquid urineformation of stains. For Water should not be poured in the toilet for cleaning. Instead, a damp cloth may be used to wipe down the seat and the inner bowls. Some toilets are easily removable and can be cleaned more thoroughly. No design will work for everyone It is important that the faeces remain separate and thereforedry. When the toilet is cleaned with water, some users may have difficulty separating both streams perfectly which may result in extra cleaning and maintenancecare should be taken to ensure that the faeces are not mixed with water.

Faeces Because urine is collected separately, calcium- and magnesium-based minerals and salts can be accidentally deposited precipitate and build up in pipes and on surfaces where urine is constantly present. Washing the urine sectionbowl with a mild acid (e.g., causing blockages vinegar) and cleaning problems. As well, urine pipes/fittings or hot water can become blocked over time prevent the build-up of mineral deposits and scaling. Stronger (> 24% acetic) acid or a caustic soda solution (2 parts water to 1 part soda) can be used for removing blockages. However, in some cases manual removal may require occasional maintenancebe required.

This An odour seal also requires occasional maintenance. It is a waterless technology and water should not be poured down the toilet. As well, urine tends critical to rust most metals; therefore, metals should be avoided for the construction and piping of the UDDTregularly check its functioning.

== Movie = Manuals, videos, and links ===

== Manual * [http://www.sswm.info/sites/default/files/reference_attachments/technologyreviewofuddts18-june-2013-komplett.pdf Technology Review of Urine- How to build ==diverting dry toilets (UDDTs) Overview of design, operation, management and costs] For more information on Dry Urine Diversion Toilets read this * [http://wwwwiredspace.wrcwits.orgac.za/downloadsbitstream/handle/10539/11789/reportARPL%207019%20-%20FINAL%20RESEARCH%20REPORT%20G%20MATSEBE%205%20DECEMBER%20lists202011.pdf?sequence=1 PERCEPTIONS OF THE USERS OF URINE DIVERSION DRY (UDD) TOILETS IN MEDIUM DENSITY MIXED HOUSING IN HULL STREET, KIMBERLEY]. Johannesburg 2011.  * [http://web%20rpts.archive.org/web/20150331190748/http://www.wsp.org/devcohwws-toolkit/TT275hwws-06tk-home Handwashing with Soap Toolkit] ===References ===* Morgan, P. R. (2007). [http://www.ecosanres.org/pdf_files/ToiletsThatMakeCompost.pdf documentToilets That Make Compost. Low-Cost, Sanitary Toilets That Produce Valuable Compost for Crops in an African Context] . Stockholm Environment Institute, Stockholm, SE. (Provides step-by step instruction on how to build a UDDT using a plastic bucket and how to construct a urine-diverting squat plate)

==References and external links==* Elizabeth Tilley etMorgan, P. R.al (20082009). [http://www.eawagecosanres.ch/organisation/abteilungen/sandec/publikationen/publications_sesporg/downloads_sesppdf_files/compendium_highEcologicalToilets-PeterMorgan-Mar2009.pdf Compendium of Sanitation Systems Ecological Toilets. Start Simple and TechnologiesUpgrade from Arborloo to VIP] ([http://www.eawag.ch/organisation/abteilungen/sandec/publikationen/publications_sesp/downloads_sesp/compendium_low.pdf low res version]). Department of Water and Sanitation in Development Countries ([http://www.sandec.ch/ Sandec]) at the Swiss Federal Stockholm Environment Institute of Aquatic Science and Technology (Eawag), Stockholm, SE. (Provides a full overview of sanitation systems.)

* Morganvon Münch, PE. and Winker, M. (20072011). [http://www.ecosanressusana.org/toilets_that_make_compost_resources/documents/default/2-875-giz2011-en-technology-review-urine-diversion.pdf Technology Review of Urine Diversion Components.htm Overview of Urine Diversion Components Such as Waterless Urinals, Urine Diversion Toilets That Make Compost: Low-cost, sanitary toilets that produce valuable compost for crops in an African contextUrine Storage and Reuse Systems]. Stockholm Environment InstituteGesellschaft für Internationale Zusammenarbeit (GIZ) GmbH, Eschborn, SwedenDE. (Provides step-by step instruction on how to build a UDDT using a plastic bucket and how to construct a urine diverting squat plate.)

* Netherlands Water Partnership (NWP) (2006). [httphttps://www.ircircwash.nlorg/pageresources/28448 smart-sanitation-solutions-examples-innovative-low-cost-technologies-toilets-collection Smart Sanitation Solutions. Examples of innovativeInnovative, lowLow-cost technologies Cost Technologies for toiletsToilets, collectionCollection, transportationTransportation, treatment Treatment and use Use of sanitation productsSanitation Products]. NWPNetherlands Water Partnership, The Hague, NetherlandsNL. (Provides country specific data and links for further information.)

* WinbladRieck, UC., von Münch, E. and Simpson-HerbertHoffmann, MH. (20042012). Ecological Sanitation. Stockholm Environment Institute, Sweden. Available: [httphttps://www.ecosanressusana.org www/en/knowledge-hub/resources-and-publications/library/details/874 Technology Review of Urine-Diverting Dry Toilets (UDDTs).ecosanresOverview of Design, Operation, Management and Costs].org] Deutsche Gesellschaft für Internationale Zusammenarbeit (Provides a goodGIZ) GmbH, general overview of different types of UDDTs – see especially page 59Eschborn, DE.)

* General information Winblad, U. and Simpson-Hébert, M. (Eds.) (2004). [http://www.gtzecosanres.deorg/ecosan wwwpdf_files/Ecological_Sanitation_2004.pdf Ecological Sanitation]. Revised and Enlarged Edition.gtzStockholm Environment Institute, Stockholm, SE.de/ecosan]

* Scope, India [http://www.scopetrichy.com/Urine_Diversion_toilet_in_Schoolspdf/UDDT_ECOSAN.asp Urine diverting dry toilet in schoolspdf UDDT Ecosan] ===Acknowledgements==={{:Acknowledgements Sanitation}}