During one of the splashing moments, the water from the side bottom of the pool started gushing out. Daddy has to think of something fast to stop the gushing water. Daddy then took a plastic bag to stick to the hold of the pool (from the inside) and let the kids continue to enjoy playing.
We do not know what actually happened. The hole was quite big.
After the children stopped playing, daddy drained the water and left the pool dry. The next day, we used the heavy duty patches to repair the hole. We certainly hope that the patches are strong enough to patch the hole.