well hopefully the elbow wont hurt too much! You might consider getting a "whale wall" brush. Much easier on the arms while brushing the sides and well worth the money IMO
http://www.amazon.com/Wall-Whale-Swimming-Pool-Brush/dp/B000SSZKK4
http://www.amazon.com/Wall-Whale-Swimming-Pool-Brush/dp/B000SSZKK4
... I'm getting tennis elbow here !