Just bought a home with an existing pool. In the shallow end there is a pole, roughly two to three feet long, which appears to be the bottom half of an umbrella pole or a table top pole. The top of it is about three inches under the surface and it runs straight down to the floor of the pool. It is rusted badly. I have tried to put a pipe wrench on it and twist it (lefty loosey) and it will not budge. I can't pull it out. It appears to go right into the bottom of the pool, I can't see a sleave. I hit it a bunch of times with the pipe wrench in hopes of loosening it. When I put the wrench on it at times it slips and the rust comes off. Bottom line its kind of dangerous (the top being a bit jagged) and I need to get it out. Does anyone have any suggestions at all? Thanks.