I have a leader elite 700 ro that had 1 60 inch 8 inch membrane in it , I had the pressure vessel stretched to hold 2 40s but I didn't gain much more flow . I think ive got to put a bigger supply pump on it as its only a 1 horse. Leader wants big money for a 3 horse that they say should be on it.Does anyone know who makes and model of leaders supply pumps for a 1000 gallon a hr ro? There is not even a name on them. I know leader gets them from d&g but im sure they get them from someone else. CDL uses goulds e-sv models but im told that a goulds will not have enough pressure to run a leader ro as leader takes more pressure to supply it than cdl does .