What this video is saying is that there are no firefighting trucks in Sosua. The people were putting out this fire by using "cubetazos" of water from the pool and that the truck that showed up to help was a cisterna cleaner that happened to be in the area.
sacandomelao.com: VIDEO: En Sos?a, apagando un fuego a cubetazo limpio
sacandomelao.com: VIDEO: En Sos?a, apagando un fuego a cubetazo limpio