thanks for all your help thought I lost my other post. I filled out all the pool info. last week I added 2 x 1qt. hth metal control (hydroxyethylidene diphosphonic acid) and 4 x hth pool shock 1lb bag (calcium hypochlorite 47.6%) (minimum available chlorine 45%) did do anything and the guy at the pool store told me the green was to much chlorine in it that is why it is green, so I let the chlorine drop back down, still green, so we pull the steps and cleaned the algae off them and left them out. I don`t know if it is algae, black, brown ect. the pool is green like pea soup and you can`t see the bottom. Last night I poured in one gallon jug of shock (sodium hypochlorite 12.5%) available chlorine 12.5% and 32oz. of algae control 60 (poly oxyethylene (dimethylimino) ethylene (dimethylimino) ethylene dichloride 60% and still didn`t do anything. I see what you are saying about the stabilizer, how much should I add to the pool, more of them 1bs bags or should I go get 5 gallons of chlorinating solution that has 12.5 sodium hypochlorite in it or maybe regular bleach. I really just not sure what to do.