Greetings ...... We have a 1.5 HP Pentair Pump and the 3/4 Booster Pump for my 380 Polaris ..... The Pentair pump has developed a Crack in the housing ( 2nd time / 75.00) .... So replace the housing or jump to a VS pump? Also I have thought about trying to eliminate to booster pump .... If I upgraded to the VS pump and went with the 2-2.9 instead of the 1-1.9 pump could I eliminate the booster pump ? I usually run the polaris 2-4 Hours a day ..... Thanks .....mike