I need someone to PLEASE break this down Barney style for me!! I have purchase a little 3 ft pool from Walmart a week ago.. We go it set up, filled with water..& forgot to add the chemicals.. So 4 days later, the Bottom of the pool was slimy-like. We have a little kit we bought separately and I called myself treating the pool... But it has turned the water green.. I am completely lost on everything.. I do not comprehend the pool "lingo".. If someone could please take the time to break it down into simpler terms or even tell me EXACTLY what to do.. I would be more than happy! It is 36 ft high, 15 around. Thanks so much in advance!!!!