Home Building Facilities Sanitation trench excavation trench excavation Description Save trench excavation details Format DWG File size 15.69 KB DOWNLOAD DWG share your appreciation Related Posts grease separator Bathroom Types and Details Bathrooms in hotel Phasoseptic and sanitary water absorption well Details of Bathrooms with their Respective Constructive Sections Floor and sidewalk drains Plumbing branch diameter table Varied Details of Sanitary Facilities Detail of home connections Sanitary Service Project Sewer – discharge head Sanitary instalation Details bathroom-lavatory Individual sewage system and installing a septic tank Construction details of a deep mouth Construction details – services – bathrooms Pool changing rooms cistern tank Plumbing Details box type