1. The problem statement, all variables and given/known data We have a tank with some gel and it will be emptied into another empty tank. The air in the first tank wil stay in the first tank. The air in the second tank will stay in the second tank. What is the equilibrium height of the solution inside the tank. also, see Excel file. 2. Relevant equations PV=cte Downwards pressure of gel solution equals pressure difference between two tanks. rho = m/V V=A*pi*R^2 3. The attempt at a solution I've made this excel file with all the relevant equations inside each cell. I'm just wondering if it's correct.