Amazing helicopter pilot taking water from swimming pool

The pilot told me that the owner is entitled to compensation for damages or lost water if he files a complaint with the Civil Defense, which my neighbor didn't, AFAIK. He explained that filling at swimming pools is only done as a last resort (but not illegal in Portugal) because of the risks involved (children playing, damage to property, flying debris such as garden furniture, etc), but he did so on this case because there were houses in danger and the water source was so convenient.