EE WAS HANDLING 5 GALLON BUCKETS WEIGHING UP TO 20 LB. SHE WAS LIFTING THEM OFF THE FLOOR ABOUT A FOOT AND THEN DROPPING THEM TO SETTLE THE SLURRY FROTH. SHE EXPERIENCED PAIN IN HER LOWER RIGH T BACK. A PHYSICIAN PLACED HER ON RESTRICTED DUTY WITH LIFTING RESTRICTIONS.