1. Identify and Mark area to be infiltrated.
Determine where infiltration needs to be placed (size and layout for the drenotube® system). Mark with paint or stake the location of trenches and lines. Set the correct tank, header line or distribution box and trench bottom elevations before installation of drenotube®
2. Digging the Trench
Maximum trench depth shall not exceed 1m. The trench shall be dug to a width around 95 cm for IF300L3/6 or 115 cm for IF370L3/6 to allocate 3 adjacent bundles ( one centermost bundle containing the pipe (Ref.IF) and two bundles without pipe (Ref BD) one at each side). As any infiltration system intended to transport fluid by gravity, the trenches for the system must be downgrade from the tank and distribution system. The trench shall be level in all directions (both across and along the trench bottom) with all continuous cylindrical bundles placed end to end, with the central bundle and distribution pipe interconnected, without any dams, stepdowns or other water stops.