Following an intervention by Veolia for a bite line (and of recurrent and annual basis due to insufficient slope of the discharge pipe of waste water) the technician told me that type of system was Karcher probably insufficient for a large cap (lack of power because of the speed) but very useful for "maintaining" the pipeline once every three months for example .... what I do now and it works very well. the only problem is the rigidity of the pipe (plastic keeps its coil memory) making its use a bit awkward (I need a length of 10 meters) but that's a detail. Obviously it is necessary to have looks or access to his property in order to use this system works from downstream to upstream.
