Ideal to empty drip trays, tank cabinets, bunds or to suck up fuel spills, water or oil. (Empties toilet cisterns with ease). - Can be used at the fill point/tank or in the fill point cabinet. - To use prime the handle & watch it suck up the fluid automatically. - To empty, remove top plug to pour out contents. - Option bi-directional version (3008108-A) automatically empties its own tank when required.