The main characteristic of overflow pools, is that the surface of the water rises higher than the pool limit, and overflows into a channel. This has as a result the easier and more efficient cleaning of the water.
Overflow pools are more impressive than the regular ones, as the surface of the water creates a large mirror, which reflects the surrounding area.
This type of pool is the ideal choice for sloping grounds, as this way the water joins the horizon and makes it an infinity pool.
There is no restriction in the size or the shape of the overflow pool. The choice of this pool becomes necessary in cases of very large or public pools.