I'm about to get a 21' round ABG and want to know what would be the best size pump/filter(sand) for this pool? All the pool stores around here sell that pool with a 200# sand filter and 1.5hp pump. I'm pretty sure the pump is too large and maybe the filter too small, but could use some suggestions. The pump/filter will be right next to the pool so the pump won't be pushing far at all. Also, would a 2 speed be better than a single speed? I plan on running the pump on a timer, instead of all day. I'm thinking of using the Liquidator. I doubt this would make a difference, but I don't know.
I don't know if 2 returns are better than one, but if I do decide to get 2 and use one with a fountain, will this affect the size of the pump I buy?