I really could use some help. My pool is an18x4 freestanding intex. It's the sixth year I have had an Intex. It went green after a huge storm about two weeks ago. Lots of trees overhead and around it (MN doncha know). I had it tested. Pool store said I just needed chlorine. Added it. Still green. Used Algaecide which didn't make it die and settle so I used more. Same result but then I found out visiting relatives had been in the pool. Once they were gone (the relatives not the algae) it settled and the pool became cloudy. I vacuumed it. I have been changing the filter daily since all of this began. I have added clarifier a few times. Still cloudy. Someone suggested baking soda to clear it up (okay they said baking powder and I told them it would make the pool taller but not clearer). I have a little test kit and it shows chlorine slightly elevated and PH a bit low. I have a giant box of baking soda and I'm not afraid to use it...ok maybe just a little. Any ideas? I really want my clear pool back! Thanks, Nancy