parker, draw off two or three pails off the side you are on, then pull the plug and put in other side. as well as change flue pan!!!. then dump sweet in new side. draw a pail of sap from flue pan to have next to you on floor. watch center tills as you go back to syrup. if making syrup in center add a few scoops of sap from pail on floor to the center tills to push it around. good luck. seems hard but once you do it no problem