A pump is simple to remove. If the installer was smart, the put the pump in using unions. Unions unscrew and release the pump from the plumbing. This allows easy installation and routine maintenance. If you do not have unions, the solution is simple as well, cut the pump out, then re-install the pump using unions. A lot of home owners confuse the "pump" with the motor or wet-end of the pump. The pump is the entire unit, motor and all. The wet end is considered everything but the motor on the back. Make sure you follow the wire diagram, as to hook the appropriate wires back where they belong. I would suggest an electrician if you are not familiar with this.