SWEET! That is awesome news. Now you get to play with your pool. Get few things that will float. I used ping pong balls. Put them in the pool at different points of the pool and watch them.
What you are looking for is the water going in a circular movement around the pool.
Did you know you can move the eyeballs inside the returns? They rotate up, down, and all around. This will help you tweak the water movement around the pool. This will help you get chlorine in that area on the back side of the island.
How are you adding chlorine?
Wait, lets back up a step. I have a couple of links for you to read over. I am going to start off small and go from there.
TFPC for Beginners
The first couple of post are the best.
This link shows you what we use in our pools. SO much cheaper than the pool store. It is the same stuff but does not have the word POOL on it so..........
Pool School - Recommended Pool Chemicals
Kim