ok we recently moved into a house with a 20k galllon pool and now that it is nice out we had it opened and took a sample of the water to the local pool store and they told us how much of what we needed and what order and how long to wait before adding. now that we have done everything they said the water still is not clear its a dark gray/green. there is tons of stuff sitting on the floor of it and i was vaccuming it for about an hour and still didnt notice the difference. we were told to add 14lbs of acalinity increaser, 6lbs of stabalizer, 2 bags of powder shock, 1lb of ph. decreaser and also treat it with algee killer. that still didnt help. so anyone think they can help?
sorry forgot to say what kind of filter i have its a sand filter and the pump is a hayward vari-flo pro series