Since the channel is smooth, it is no longer necessary to use an additional coating such as epoxy.

This process also provides protection against the infiltration of contaminants between the wall of the manhole and the channel since it is now manufactured in a single cast.

An old technique handed down from the Arabs: water extracted from the nearby pool is distributed through a channel, similar to a ditch, by opening and closing gates.

This process also provides protection against the infiltration of contaminants between the wall of the manhole and the channel since it is now manufactured in a single cast.

A fresco represents the barrière de la Cunette, one of the doors of the Wall of the Farmers-General that was one situated where the station is now.

The three absorbing wells, of the Combat, the Cunette, and Saint-Mande, with their discharging mouths, their apparatus, their cesspools, and their depuratory branches, only date from 1836.

This station also has a fresco of the battle of Cunette, a former Paris city wall that served as a gate to pay taxes.

In MARCH 2017 , the rehabilitation of the Cap Sicié collector came into its last stage : applying an anti-H2S coating on the side strips and the lock walls of the cunette.

The three absorbing wells, of the Combat, the Cunette, and Saint–Mande, with their discharging mouths, their apparatus, their cesspools, and their depuratory branches, only date from 1836.