1. hold the handle with right hand, place the thumb of the left hand on the combined part of white and metal blade. you are truly a great, great actor. the roots of trees may also cause damage to sewer lines. on the far side of the bridge is a bumpy road which leads to a nice picnic area with tables right on the river, about 100 yards down from the bridge. and when it gets dirty, you can easily wash and dry your polyester top cover. 