10.17028/rd.lboro.8067863.v1 Glenda McMahon Glenda McMahon Rod Shaw Rod Shaw Septic tank systems version 1 Loughborough University 2019 WEDC Technical Diagram Sanitation Septic tanks International and Development Communication 2019-05-02 11:28:15 Figure https://repository.lboro.ac.uk/articles/figure/Septic_tank_systems_version_1/8067863 Septic tank systems version 1