Does anyone want to give a shot at explaining to me exactly how a toilet works?
So I get that the idea is to create a pressure difference between the bowl and the output end of the tube, and that water flowing from the tank into the bowl increases the hydrostatic pressure at the input end of the tube and reduces pressure in the Erkel tube via an aspirator. But I don't really get how the aspirator works or how it reduces pressure in the Erkel tube. I'm picturing the aspirator as a thin tube full of air that's above the water level of the tank, is that right? If so, then wouldn't the pressure in the aspirator always be equal to atmospheric pressure? Can somebody explain how the water level in the tank can change the pressure in the aspirator tube if it's open to air?
Also for Q28, why is II true:
II. Water flows because the hydrostatic pressure is greater at the output end of the tube than the input end.
Shouldn't this be the opposite? Fluids flow from greatest pressure (input) to lowest pressure (output), no?
So I get that the idea is to create a pressure difference between the bowl and the output end of the tube, and that water flowing from the tank into the bowl increases the hydrostatic pressure at the input end of the tube and reduces pressure in the Erkel tube via an aspirator. But I don't really get how the aspirator works or how it reduces pressure in the Erkel tube. I'm picturing the aspirator as a thin tube full of air that's above the water level of the tank, is that right? If so, then wouldn't the pressure in the aspirator always be equal to atmospheric pressure? Can somebody explain how the water level in the tank can change the pressure in the aspirator tube if it's open to air?
Also for Q28, why is II true:
II. Water flows because the hydrostatic pressure is greater at the output end of the tube than the input end.
Shouldn't this be the opposite? Fluids flow from greatest pressure (input) to lowest pressure (output), no?