I am not sure. I am not clear I guess on the interaction of the three. there are actually four components five if you count the basket. Have the media container. The thyngy mabob that is the top and mates with the inards of the tank, Motor and pump. I was thinking the same thing. Just got done removing the pool: Whew! But I have some crinkles in the wall from trying to roll it back up. Should I pop them back out or let the weight of the water do that. Or (third option) did I just screw the pooch?