Although a pool is enjoyable in the warmer summer and spring months, those who live in cooler areas may opt to close their pool during the off-season. A pool may also be closed anytime during the year when it is not in use. You must go for an excellent pool cover when you are closing your pool for a good reason. The complete surface area of a pool's water gets covered with pool covers so that leaves, debris, or other items do not get into the pool and maintenance or cleaning of the pool during its reopening becomes easier.