Restricting the movement of a broken bone in your leg is critical to proper healing. To do this, you may need a splint or a cast. And you may need to use crutches or a cane to keep weight off the affected leg for six to eight weeks or longer.
(Minimums vary by location and tank size, and can range from 100-1,500 gallons.) More often, the propane company charges a fee of anywhere from $25-$250 a year but averaging around $75-$130 annually, depending on local rates, the size of the tank and whether it's aboveground or underground.
Used propane tanks are often sold on craigslist or other sites for anywhere from 75 cents to $1.25 per gallon capacity ($375-$625 for a 500-gallon tank), depending on local prices. Check with local propane dealers about costs and requirements for testing and certifying a used tank.