Ok, I started a post last yr, then picked it back up this summer and after 4 pages of questions ( and me researching & reading on here), I think Ive simplified it down to this:

I have a 24' round above ground pool. 52" deep which I think is approx. 12k gallons of water? My old 1.5hp pump and 200lb sand filter are both cracked and didnt filter properly anyways. Here is the 2 I have chose to replace them with. Before I order, Id love for several of you experienced pool owners to offer you opinion. Is this Hayward 1hp, 2speed pump, a good fit for this 21" (200lb) sand filter? Or would you go with a 250lb or 300lb sand filter? Would getting a big sand filter hinder the ability of this pump to operate on low?

http://www.amazon.com/gp/product/B00...=AWFPPQUZBOHNP

http://www.amazon.com/gp/product/B00...=ATVPDKIKX0DER