Ok guys, I need a little help here. We're putting the finishing touches on a new enclosure for Superman and we're having some trouble with the water situation.

Right now he's got a large rubbermaid tub that he can fully submerge in, but it has to be cleaned out at LEAST once a day because he poops in it. Right now getting his water in and out isn't a problem but will be a little more difficult in his new home. I was wanting to give him a much larger water tank like This one but not sure how we will clean it out. It would be too much to drain and replace everytime he poo's in it. Could we use a pond filter? Would it clog up with poop?

It has a drain plug on it that we were thinking of creating a drain with a valve on it for fully emptying and we can run tubing out to the drain but we need a way to get the grossness out!!