HE LOADED WATER PUMP AND WATER STAND ON ROAD CREEK AND TOOK TO ELSWICK FORK. HE SAID HE WAS HELPING TO UNLOAD PUMP AND STAND. HE DID NOT KNOW HOW HE DID IT BUT STARTED TO HURT AFTER COMING BAC K TO ROADCREEK. HE SAID HE WAS OK TO GO TO THE DR TO GET CHECKED OUT. EE HAD PULLED ON THE SUCTION HOSE AND DISCHARGE HOSE OFF TRAILER.