I just bought an 18' X 48" AG metal frame pool to replace the same size easy set pool that was damaged in our last hail storm. The old pool has a pump that pumps 2000 gallons/hr and is a 5500 gallon pool. The new pool is a 6300 gallon pool, but the pump that comes with it pumps 1500 gallons/hr. This makes no sense to me at all and I'm considering using the old pump, since it will circulate more water each hour. Am I on the right track here?