A little bit of backstory, my husband practically begged me to get this above ground pool for him and the kids and I made him swear he would take care of it, low and behold I am the only one performing many maintenance( if this were a puppy it would be dead). I'm pretty bad at things like this and am terribly lazy. We managed for a few weeks with no incidents, adding chlorine, running the pump, crystal clear water. After we returned from vacation the pool looked like a swamp, I'm talking dark green and murky. I bought a few things, tested the water. I started by just changing the filter and adding chlorine and giving it a good scrub. That was a start, someone suggested that I shock it, so I did. It killed all of the green but remained murky for a week. All of my numbers were what they needed to be but it was turning green again, so I figured that because I did the shock during the day it wasn't as effective. Shocked again but this time at night. Water is clearing up, ph is good, chlorine is still high. My question is, when will the pool be usable again, and how can I keep this from happening weekly?