My pool is about 30 years old but new to me this year. I am slowly learning "pools". It is 20X40 with most of it what seems to be cement. The sides are some sort of vinyl I believe. I have been told it is about 35,000 gallons. I just had someone open it and my water is cloudy but it wasnt before he open it, it was just dirty. I know he shocked it and there was a lot of dust in the pool which I have been mixinng into the water to help filter it. I tend to think it is couldy from mixing the dust around. I also have a Letro Legend pool vac working. My question is can I go the BBB route with this type of pool? I have no idea what kind of filter I have. I also have a heater. Can the BBB route be used on any and all pools? I have a basic test kit that measures PH and Chlorine levels. Should I get something more advanced? Any help is appreciated.