I'm doing pressure calculations for a building project. I'm added all the bends and lengths of pipe up to the fosset on the top floor to find the pressure loss. In the basement there is 3,7 bars of pressure. At the top I'm left with 1,8 bars. Is this enough? What I wonder is how I can figure out what kind of force and amount the water will bring as the fosset is opened fully? Any help is appreciated.