The test facility has been designed to simulate the life cycle of underground infiltration systems – i.e. honeycomb structures, perforated pipes, etc. – through controlled accelerated clogging. An experiment involves measuring changes in their infiltration capacity and assessing the effectiveness of cleaning protocols. A complete test – filling, clogging, cleaning, measurements and inspections – lasts approximately 8 days.

The test rig consists of a modified container (containing the infiltration device to be tested), an inspection chamber, a tank container providing the water supply, a mixing tank for the inert pollutant, two eccentric screw pumps, a magnetic induction flow meter, piping components that operate the system in a closed circuit, and a technical container.