Sorry for the misinformation as I'm a newbie and learning as fast as i can. The pipes coming from the ground attaching horizontally into the pump is 1.5". The size of the piping between the pump and filter is 2". The return pipe going back to the pool is 2" but soon decreases to 1.5". Again I may be wrong about this as there are other things attached to the pipes including a heater that is not being used and a booster pump for the polaris.

On average, how long would it take to replace a pool pump? Thanks again!