EE WAS FILLING A ROCK DUST TANK. ROCK DUST CHUTE HOSE BECAME PLUGGED. THIS HOSE WAS TAKEN OFF THE TANK IN AN ATTEMPT TO CLEAN THE HOSE. THE CLOGGED AREA BROKE LOOSE AND THE HOSE HIT THE EE KNO CKING HIM TO THE GROUND. HE SUFFERED A CUT TO THE LEFT KNEE AND ALSO THE KNEE AND THIGH AREA WAS BRUISED.