Recommendation to avoid drowning,  in pools and spinal trauma injuries

Avoid pool drains. 
Check carefully the depth of water before submerging Check the depth carefully before entering (you were close). Don't head thrown dive into water of unknown places in the depth, or possible spinal cord injuries may result.
Avoid places that are not suitable for swimming/jumping/enteringfrom them, as are trees, balconies or other inadequate places. (was this meant to mean don't jump into the water from these places?
Introduce Enter the in water slowly.
At plunge of head, the arms should be placed in the body extension to protect head and neck (I'm not sure if this meant that a person should should protect themselves, or someone else). A bad fall from high height, although it falls into the water, can have a result in serious injury result.
Always control always children, even when the amount is small water is shallow.
Don't drink alcohol.
Be carefull with stomach cramps (or don't enter the water if you have stomach cramps). A shower is recommended before swimming.
Don't jump over people.
In case of an crash injury occurring and with the to need to the pick up and or manipulate of the victim, it is very important to immobilize the neck column and to call for warning a
professional for the transfer to a hospital. Don't transport the injured in your own vehicle.