Hydraulic reel with telescopic arm mounted on the top of the tank, fitted with 40 m of DN 80 suction hose (or 20 m of DN 100 suction hose, or 15 m of DN 120 suction hose) Hydraulic reel coiling and uncoiling with adjustable speed, arme swivelling over 120° stroke 1,4 m, drive with hydraulic motors. The suction hose is driven through motorized and synchronized rolls by the reel motor, automatic stop at the end of the hose. Pneumatic piston valve Ø 120 mm directly mounted on the tank.