It is going to be difficult for your jet to stir up things on the bottom. My pool is also round and when I angle the jet a bit downwards and away from the skimmer, it also sends debris to the center of the pool.

Wonder if your pool store has an above ground pool vac called "Polaris 65." I have one and it does a good job of picking up leaves, twigs and debris. Not so good at getting dirt and dust, but when I have a lot of leaves in my pool, it does the trick. It is a pressure side cleaner and has a unit that randomly moves around the top of the pool and has a hose underneath it with a mesh bag attached to it that swooshes across the floor of the pool and a stream of water shooting out of the bottom hose forces leaves into the bag. Just a thought.

Janet and Carl have given you good advice. Frequent doses of bleach will kill the algae. The key to killing algae is to sustain the high reading and not let it yo-yo up and down. As many times a day as you can, test and add more bleach. The more often you do this, the faster you will clear this pool. When you have a swamp on your hands, there is no such thing as doing it too many times a day. Good luck, keep us posted and welcome to the forum.