Swimming Hole

Now that spring has arrived there are certain jobs that need to be caught up on. One rather daunting, messy thing that I will have to be getting done is our pool...
At the moment it looks more like a frog infested pond, full of pine needles and leaves, and a whole winters worth of algi growth.
Since we want to be able to swim as soon as the sun is warm enough, I only have about a month to turn this pond-scum into a sparkling-blue swimming hole. Wish me luck!