Your pool float should never be used as a life-saving device. Life saving-devices, such as lifejackets and other flotation devices have been created to hold a lot of weight in the water. Pool floats are not designed to hold as much weight, even though they may hold your weight when you are in the water. They have also not undergone the rigorous tests which life-saving devices have. While pool floats may seem like they can withstand outside influences in the pool, they are not designed to hold up under any additional stress.
If you are in a life-threatening situation and a pool flow is used to save you, it may make matters worse. Life-threatening situations are filled with stress and panic. People have a tendency to grab onto anything which could save them. That undue stress can damage a pool float. If the float bursts, then it can cause you more panic. Pool floats are also not shaped to be life-saving devices. They can be difficult to hold when you are trying to stay above the water.