I am trying to use a suspended type level transmitter for measuring level of gasoline in an underground tank. The tank is horizontal cylindrical in shape & has a height (dia) of 2.7m & length 10.7m. The suspended type level transmitter basically measures the hydrostatic pressure exerted by the head of gasoline. The level transmitter has a capillary running up to ground level to compensate for atmospheric pressure. Could anyone answer if the shape of the tank has anything to do with the level head calculation?? I understand that the volume vs. level curve will not be linear, but does the shape of the tank have any effect on the linearity of the level itself?