Hi I have a hard plastic kiddie pool (had to give up on something bigger because of weight restrictions). I am wondering if it is possible to install a pump/filter system running the tubes over the top of the side of the pool rather than having them in the wall of the pool? Note the pool is roughly 6' round and is filled with no more than 2' of water. I would rather not have to spill the water regularly which is a pain and seems very wasteful. Any thoughts?