EE WAS CHANGING OUT A BALL CHIP DRUM, THE MOTOR ON THE TROLLY WAS NOT WORKING, THIS MADE IT NECCESSARY TO PUSH THE DRUM TO THE END OF THE BOOM BY HAND. AFTER THE DRUM WAS CHANGED SHE STARTED T O WASH SOME PRODUCT SPILL OFF THE FLOOR. SHE WASHED OFF AND ON APPROXIMATELY TWO HOURS. AFTER WASHING SHE EXPERIENCED PAIN IN HER RIGHT HIP AND SHOULDER. IT IS NOT KNOWN WHICH CAUSED THE PAIN