I have a Coleman AGP 16'x4' that ended up green before we could use it. I followed the directions here and got rid of the green, however I haven't ever been able to get rid of the cloudy water. I was previously using the cartridge filter that came with the pool but decided to upgrade to an Intex Sand Filter ( I believe 2,800 GPH) thinking maybe it wasn't powerful enough to clear everything. I have been adding chlorine to shock levels daily as I thought maybe the algae wasn't all dead. The FC doesn't seem to drop overnight, although with my OTO kit I can't measure above 5, so I guess I wouldn't know, however the sunlight during the day kills it. My CYA still reads zero on the crappy 6-way test kit I have. I tried adding CYA through a sock (I don't have a skimmer... yet...) and after over a week in the pool it never really dissolved, just let out crystals every time it was bumped or the water jet hit it.
I have had the sand pump installed now for three days running continuously. My pressure hasn't risen since I turned it on. It has great suction and flow so I know it is circulating the water well. I tried clarifier (and was careful to use only the necessary amount) with zero change. I honestly have no idea what to try next, but I know it is getting more and more tempting to just drain it and start over, although that would be awful. Any help is greatly appreciated!
I have had the sand pump installed now for three days running continuously. My pressure hasn't risen since I turned it on. It has great suction and flow so I know it is circulating the water well. I tried clarifier (and was careful to use only the necessary amount) with zero change. I honestly have no idea what to try next, but I know it is getting more and more tempting to just drain it and start over, although that would be awful. Any help is greatly appreciated!
You have the right concept, but the wrong tools - specifically the test kit. The HTH drops are okay for pH and seeing if you have "any" chlorine, but not much more past that. You really must obtain the TF-100 (link below). You need THOSE readings to know for sure what chemicals to add. It all starts with the proper testing.