Re: Kiddie pool questions
I may be out of line as I just joined yesterday myself, so thus a newbie too, and considered myself having a kiddie pool too with 2200 gallons but 350 is really a kiddie pool 
So I'm not that qualified yet, but just in the replies I have already received and the ton of reading I have done, I would think it's safe to say that if you have not opened the floating dispenser I would return it. You don't need that even for a small 2200 gallon like mine.
Any chemicals you haven't opened I would return as well. For such a small size I don't think you're going to have a big issue that the three B's won't take care of. If you haven't read them yet, the three B's are Bleach, Borax and Baking soda.
You'll need a test kit too. Walmart sells a good test for $15 or might be able to get away with test strips for such a small pool. The pros around here will correct me if I'm wrong on that one
Did you just buy the pool? The cost of even small filters will cost about as much as the pool itself. I got a 2200 gallon at Toys R Us 3 weeks ago for $80 and it game with a filter that connects to the side of the pool. With pool season over is some parts of the US, check prices as you might can buy a bigger pool with a filter than buying a filter alone. So you may have to resort to dumping the water every few days. It cost me about $50 to fill 2200 gallons. That's less than 2 cents a gallon.
So my guess it will cost about $6 or so to fill your pool. Compare how much that would cost to how much a filter alone would cost and how much longer you'll be able to use it this year.
24' x 52" AGP = 13.5k gallons
Dynamo 2.0 HP pump, Sand Dollar sand filter, Polaris 65 vacuum
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