It's ineffective, you need more stages. Tsiolkovsky's equation shows how much dV you get with a given wet : dry (empty) mass of a rocket stage. Very quickly it

It's ineffective, you need more stages. Tsiolkovsky's equation shows how much dV you get with a given wet : dry (empty) mass of a rocket stage. Very quickly it's becoming very inefficient. Unless you are talking about some untested rocket that dumps empty fuel tanks in pairs. (Like in the dV book by Daniel Suarez).