19. Drainage
Does this dwelling have drainage or sewage connected to:
[Read the options and circle one code]

19. Drainage
This question allows you to know whether the dwelling has pipes that displace the waste water in toilets, sinks, bathrooms, showers, or other facilities. Additionally, this question distinguishes if the pipes are connected to the public network drainage or a septic tank, if the waste water flows into a ravine or crack, or if it will arrive to a river, lake, or sea.

Consider the following words as synonymous drainage: plumbing, drain, pipe or sewer, among other terms, just in case the informants call the drainage using those words. Read the question together with each of the options to get an affirmative answer and circle the corresponding code.

[Figures are omitted]

Take into account the following definitions to answer questions:

• Drainage connected to the public network displaces the waste water to the public service infrastructure, which goes through the street.
• Drainage connected to a septic tank evacuates the waste water in a closed and buried container which was specially built to receive, separate, and treat liquid and solid waste. Usually the septic tank is located in an excavation in the land of the dwelling.
• A septic system is a prefabricated device and it is installed in a hole to receive, separate, and treat waste water, so it has the same function as the septic tank, but it is considered more modern. If the respondent answers that they have a biodigester and it is working, circle the option "a septic tank or septic system (biodigester)".
• Furthermore, there are some dwellings whose drainage deposits the waste water in a ravine, crack, river, lake, or sea. If the respondent reports this situation, circle code 3 or 4, as appropriate.
• Circle the last option, "there is no drainage", when the dwelling does not have pipes to deposit the waste water somewhere outside the house and they only pour the waste water on the courtyard or land.