i used a rubbermaid bin for my original sump. stupid manufacturer's made it with holes 1/3 of the way from the top for air circulation which caused not only power outages to leak onto my basement floor, but condensation from the lid would drip through said holes. i constantly had water on my floor from it. without those holes, it would have held all the excess tank water during an outage. i constructed a wood frame to keep it from bowing out. pain in the arse, so i use a 90gal tank now. no problems any more.