looking for some info on keeping a kiddie pool safe and clean. It's real tiny, maybe 6 feet by 3 feet, rectangular with about a 1 foot depth. I've been draining it regularly, but I find it to be a waste of water. I am trying to find some small filter setups and use the BBB method. Doesn't look like there are any small kiddie pool pumps, and the one's I do find all have bad reviews. Is it possible to use a large aquarium pump?