We modified the clamp (free end of hose) for the release of the mandrel with an End Stop to block the mandrel during the flushing procedure. This should avoid that the mandrel can shoot out quickly, when still no water is escaping at the free end because of short extracting length. When the operator observe end of hose and detects water coming out (flushing done properly) he release hose with mandrel from clamp and start the extracting of hose. Of this technical solution, finish on 2Q15 for hose DN06, DN10 .