My brother has an above ground oval pool, which is 15' x 30' x 48". He currently has a 1.5 HP Hayward pump and a broken DE filter. He is buying a new sand filter and needs to know the appropriate size. He is not averse to buying a new pump too, and emailed me this combo and wanted to know if it's ok for his pool.

http://www.amazon.com/dp/B000EVNZLQ/..._it8Wtb13MV2A7

Any and all advice appreciated.

Tom