Place the clean spare carboy on the floor and the full jug on the counter. Insert one end of the sanitized tubbing in the full jug making sure not to suck up any of the sediment.
With one end in the jug, suck the other end of the tube to draw the cider out. When the cider is halfway through the tube, put the end in the spare jug and the juice should start flowing out.
If you want to sweeten the cider you can add 1 cup of cider and 1/2 cup of brown sugar or honey to a saucepan and boil for 2 minutes. Pour the syrup back into the cider jug and shake it up. Taste it, you may need to add more sweetener.