The CDU1000, nor any sump pump is built for PSI. The maximum PSI any sump can do, even the 1hp is about 5-10 PSI depending on the total dynamic head. These pump are not intended for the application that you are looking at and you would probably be better off with a � hp 115volt deep well submersible 2 wire because you could get up to about 60 PSI and it would be controllable with a pressure switch. The only hindrance I see it the depth of the water collection area.