Actually the compressor/diffusers can be lethal too - in winter. I had a friend who's dog drowned when he went through a thin ice spot created by his pond diffuser. He let his dog roam the property all day while he was at work though, something I would never do. I'd be terrified my dog would end up on the busy highway in front of the property, let alone on bad ice.
Last edited by Cecil Baird1; 04/02/11 10:00 AM.