NOTICE: 1.Not suitable for saltwater or corrosive liquids. 2. The fluid you are trying to get rid of has to be up higher than the bucket you are flowing into. 3. Please keep the hose inside of the container, not just put it on the surface. 4. Only for vehicles without a gasoline protection grid. Usage Scenarios This manual water pump is for fuel petrol crude oil gasoline oil water and other common liquids, also can be a water changer for the fish tank at your home.