I originally thought tank K because the area in tank J is much larger than the area in the pipe connecting J to I
But then I realize Bernoulli's equation does not include volume but only includes height.
H_1, H_2 = height of water tank J, height of water in pipe between tanks J and I
P, p, V = pressure, density, velocity
Pressure terms are the same, so is density. Velocity = 0, gravity cancels out ##H_1=H_2##
So even in the small pipe connecting J to I, the water level is going to be the same as the height of water in the tank J.
Is this correct?
Also note the pipe from C to D is blocked off.
Also I assume A would be trivial solution so water must exit pipe faster than the tap fills tank A