👁️‍🗨️ User interface /--> U6 - Shallow trench latrine.

👉🏼 **https://sanihub.info/topic/shallow-trench-latrine/?source=technology-overview**

https://sanihub.info/topic/shallow-trench-latrine/?source=technology-overview

👁️‍🗨️  Source SANIHUB© : https://sanihub.info/steps/technology-overview/ , https://www.emersan-compendium.org/en/technologies

QR-code-linktr-Watsan matters.png

****👁️‍🗨️ https://linktr.ee/watsan_matters