I’m not sure if this is the right place but here goes. I just finished setting up a used 18’ AGP and filled it with my well water. I only have a small test kit from a couple of years ago when I set up a ring type pool and I the PH was 7.2. I don’t remember the other tests it did but they all came out in the good range. I put a packet of HTH Shock & Swim in and blew up a couple of inflatables. When I turned around to put them in, the water had turned from a clear to a dark green, this was all within a ten minute period. From what I read it sounds like I have a mineral problem. There is a Leslie Pools and a Namco reasonably close to work. What do I need to buy to clear this up? This has been a fiasco from start to finish (and it’s not even finished yet) trying to get a pool up and running.