The PREY suction hose testing device—SPE for short—for use in PREY hose maintenance systems consists of three wooden support bridges with semicircular recesses, a vacuum injector with a rotatable C-connection, a 0.8-meter-long vacuum spiral hose with an A-blind coupling, a manometer-vacuum gauge and two precision bronze ball valves, as well as an A-blind coupling with a bleed valve for pressure testing and a round, precisely fitted Makrolon clear glass pane for internal illumination and visual inspection. The piping is made of stainless steel.