I am thinking of adding an additional Intelliflo 4x160 to handle my spa jets. I am wondering a 3" suction line from the spa would be enough water for both Intelliflo pumps. The reason I am adding the pump is because I have two ways to return water to the spa. One is though the floor the other is through the jets. I would like to be able to continuously keep the water hot with one pump by returning the heated water up through the floor and use the jets to recirculate the already heated water. I just need to know if the 2 intelliflos would get enough water from the one spa suction that is 3" pipe.