13. Drainage system
The drainage system in this dwelling is connected to:
[] 1 The public system
[] 2 A septic tank
[] 3 Pipes that go into a ravine or gully
[] 4 Pipes that go into a river, lake or the sea
[] 5 There is no drainage system
13. Drainage
This question investigates if the dwelling has drainage at its disposal, and distinguishes the place where the dwelling removes the residual water.
The dwelling has drainage if it has a system of tubes that eliminate the water used in the toilet, sink, shower, or similar installations.
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These are synonyms of drainage: tubing, drain, piping, sewer, among others. When you ask the question, mention the common name in the locality where you do the interview.