Please help. I have part A, but need part B. If you could solve both for reference, it would be appreciated.

3) (20 Points) Water is contained in two closed tanks (A and B) which are connected by a pipe at 1 m above the ground level. The tank A is pressurized at 1.5 atm pressure with nitrogen gas above the water level while tank B is pressurized 4 atm with nitrogen gas above it. For both tanks, it can be assumed that nitrogen behaves as an ideal gas under these conditions. Initially, the water level in tank A is 3 m above the ground whereas tank B is above 2 m above ground. Each tank is identical and made from stainless steel with a total height of 4 m and the base area of 1 m. (a) [5 pts] Which direction does the water flow? (b) [15 pts] What is the equilibrium height in each tank