I have an above ground pool about 15 ft round and 48" deep. I have well water. I've been having so many issues since we bought it. Mosquitoes and little no see em bugs keep laying eggs in the pool. My water turned green when I shocked it. After draining it all out and refilling it, it turned brown after I added chlorine. I have never owned a pool before and i just can't seem to figure out what chemicals I need to prevent all this from happening and how often to check the levels and add chemicals. Someone please help me, In clueless!!!