FIELD: laying of underground manifolds, in particular, construction of horizontal filtration wells and drainage pipelines. SUBSTANCE: at least one well with inlet and outlet holes is driven in the preset soil layers. Then a drawing assembly of the filtration thread, consisting of an internal filtration thread and external, pipe-shell, is pulled through the well. The gap between the internal filtration thread and external pipe-shell is filled with filter sand and/or filter gravel. EFFECT: facilitated procedure. 31 cl, 5 dwg
