We have recently installed an above ground Intex metal-framed pool (15' x 48") and it came with a filter than is 1000 GPH. I did a lot of reading before we bought & installed our pool, and a lot of people suggest that the pools are sold with inadequate filters. Would it be a worthwhile investment to consider upgrading to a stronger filter to keep our pool cleaner? I'm thinking with 2 adults and 3 kids that we may have a fairly high bather load, especially if friends or family come over.

I was considering something like this:
http://www.amazon.com/gp/product/B00...SIN=B003BXCU9W

What do you think? Thanks for any advice!