Why must there be a deep water area in the swimming pool?

1. If you swim in a hotel swimming pool with a water depth of only1.3m, a length of about 25 and a width of about 20, you will feel the lateral disturbance and resistance of water waves. Have you ever seen a ship ups and downs in the sea? That's it. Next to the big brother, fart in the water and you will burst into a circular wave with a radius of 2 meters. You can experience it.

The standard swimming pool not only provides you with a place to swim in your spare time, but also undertakes competitions. A pool with a water depth of 1.5 meters. Did you let the diver fall to the bottom of the pool?

3. The action of freestyle touching the wall and turning over is to go down as far as possible to avoid the turbulent area caused by swimming in the upper part. It is impossible to lie at the bottom of the pool with 1.5 meters. To sum up, a regular swimming pool can meet the needs of both formal competitions and amateur entertainment. This is called backward compatibility. However, according to the regulations, swimming in the deep water channel requires a deep water permit, and many swimming pools do not need a deep water permit at all. Is the depth of 2 meters dangerous? There are buoys in every lane. If you can't swim or cramp, just grab the buoy. It's no safer here than by the river.