Keep a mop handy.
If the pool pump dribbles a little outdoors it's usually no big deal. Indoors, depending on the location, it could be just toss a towel on the concrete floor, or it could mean damage to some expensive flooring.
My only other concern would be that it is designed for a pool, meaning leaching some chemicals which are harmless to humans, but potentially harmful to fish, could occur. I would give it a trial run in my basement with some culls, if they seemed to be OK, I'd let it rip.
I always have a mop handy though.