Hello, is there anyone who can help me with this? Im completely stumped. Here is the situation: Point A: Water is flowing into a valve at 559 (mbar) of pressure and into a cylinder thats 12 mm long and 7mm in diameter. Point B: It then will enter another cylinder that is 40 mm long 10 mm in diameter. Point C: At this point it will enter another cylinder 5mm long and 7mm in diameter. Im trying to figure out what the pressure will be at Point C so that I can choose the correct umbrella valve to use so that water flows out of the chamber.