FOR THE LAST TIME!!! IT IS NOT AND WAS NEVER A POOL!!!! it just looks that way cuz of the tiles. it has a proper pond filter...ill have to take pics for all u fanatics out there...my pond guy built it from scratch...it measures about 16 feet by 4 feet and is compartmentalized with cement. im not a filter expert so i cant tell u much more...but i know that 4 really powerful pumps r used to pump water into 4 different sections of the pond to promote aeration and water movement!mcsx;3026972;3026972 said:is there another post saying what you did with the filtration or did you use just a normal pool filter and pack it with bio stuff?