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Pipes must evacuate wastewater quickly and without stagnation. Find out how to install a network of pipes: preparation, tools, materials, PPE, good masonry actions step by step. ---------- Subscribe to the YouTube channel: https://www.youtube.com/c/AQCTV/?sub_... Visit our website ► https://qualiteconstruction.com/ LinkedIn ► / agence-qualit%c3%a9-construction Instagram ► / apprendre_par_limage Facebook ► / qualiteconstruction