We have a 15 ft by 36 inch Intex metal frame pool and want to upgrade the filter to a sand filter and separate salt water system (thanks for the insight on not buying it together) but I am having a hard time figuring out what size sand filter I need...1200 gph, 1600 gph, 2650gph. They are all similar in price on Amazon but I don't want something too big or too small that it doesn't work correctly or won't allow vacuuming (which I hope to purchase, as well).
Thanks for your help!
Thanks for your help!