Absorbing manholes manufactured by Polieco are manholes made from a Drenopal double wall co-extruded high density polyethylene slotted corrugated pipe. The pipe has a smooth wall inside, coloured grey, and corrugated outside, coloured black.
The absorbing manholes feature a series of slots along the entire circumference of the riser, placed in the cavity between one corrugation and the other: the slots are specifically designed by Polieco to disperse stormwater into the ground.
The absorbing manhole makes it possible to manage stormwater without releasing it directly into the sewer system: unlike cement items, the polyethylene absorbing manhole is versatile and easy to handle and install, while maintaining the strength and functionality properties that make the absorbing manhole a fully reliable item.
Diameters normally used in this application are ND/OD 1000 (inside diameter of 855 mm) and ND/OD 1200 (inside diameter of 1024 mm).
A number of accessories are also available, such as the tapered adapter and couplings. You may request a polyethylene plate, welded to the inside wall of the manhole, to close the stormwater dispersion manhole.
To know further features and details on the stormwater dispersion manholes manufactured by Polieco, download the specifications or get in touch with us.