Look for a threaded rod with an adjustment nut at the point where the lower rod connects to the upper one. You can adjust the length of the linkage by turning the nut clockwise -- to shorten it -- or counterclockwise with pliers. If the nut is stuck, hold the rod steady with a second pair of pliers while you turn it. Lengthen the rod if your tub doesn't have a stopper and it isn't holding water.
A 200-pound person burns about one-third more calories than a 150-pound person.) So a brisk walk, covering three-and-a-half miles in an hour, burns about 280 calories. When repeated each day, this excellent habit burns about 3,900 calories -- more than a pound of fat -- every 2 weeks.
General Guidelines. Weight loss specialists often advise patients who want to walk to lose weight to aim to move for 30 minutes at least four or five times a week. Many people are able to cover about 2 miles (about 3 km) in this amount of time, and the calorie burn is significant, too. A 150-pound (68 kg) person walking between 3.5 to 4 miles (5.6 to 6.4 km) an hour can expect to burn about 300 calories.