Each type of drilling has its disadvantages and advantages. In order to delve into the subtleties of each of them, before starting work, it is worth studying special literature or seeking advice to professionals. For example, the pluses of the rotational method include the high speed of the passage. And the main disadvantage can be called the difficulty of drilling if there are clay in the wells, to continue the work, you will have to periodically clean the well from it. For the best effect, you can apply drilling with reverse flushing, but you should not use a clay solution.