New to pools

Jul 10, 2016
1
Minnesota
Hi everyone, I'm new to pools. I only have a 1075 gallon blow up ring (the blue ones you see) style right now. I don't have much info yet, I've been dealing with a local pool store for information so far, but it's not helping much. I've drained my pool twice so far, first time was for green algae, second was brown water after chlorine added and then the water cleared but brown substance settled on the floor. I do have well water. I will start a new thread with more info and questions a bit later. Thanks for having me!