hello
i am trying to see if a rain gutter can fill a tank but i am extremely rusty about the equations and calculations
i have a rain gutter connected to 4 or 5 inch pvc tube running down to a really big tank ( more than 50 000 litres ) from the bottom (not the top) without any pump
relying on the pressure of the water in the gutter and pipe and according to my understand , rain will only fill the tank as high as the diameter of the tube or will the rain water be enough to fill it ?
is this correct? can you point me toward the equation needed to prove this ?


i am trying to see if a rain gutter can fill a tank but i am extremely rusty about the equations and calculations
i have a rain gutter connected to 4 or 5 inch pvc tube running down to a really big tank ( more than 50 000 litres ) from the bottom (not the top) without any pump
relying on the pressure of the water in the gutter and pipe and according to my understand , rain will only fill the tank as high as the diameter of the tube or will the rain water be enough to fill it ?
is this correct? can you point me toward the equation needed to prove this ?

