So I've been looking into these for a while now, they are not too common here in the U.S. but apparently they are well known in the U.K.? Does anyone have any light they can shed on these, my yard is huge and flat and open and just ready for a pool like this
http://www.goodshomedesign.com/biotop-natural-pools/http://www.houselogic.com/photos/pools-s...eyre-expensive/