TERAPUMP Food Grade BPA Free Emergency Survival Disaster Fast Speed Drum Siphon Drinking Water Pump Food quality Drinking Water Safe Siphon Pump Heavy Duty / High Speed Siphon Pump Drains up to 1 pint per 3 strokes Delivery , Volume : About 21 liter / Min Total Length: 45.7" , Suction tube Length: 33.6" , Discharge Tube Length: 46.4" Suction tube and Discharge Tube Inner Dia: .79" Heavy duty / Fast Siphon Pump / BPA Free Designed for quick and easy emptying of 15, 30, and 55 gallon drums Made of<span class="a-text-bold"> <span class="a-text-italic">polyethylene </span></span>and<span class="a-text-bold"> <span class="a-text-italic">PVC. </span></span>Comes standard with a<span class="a-text-bold"> <span class="a-text-italic">2&#034; NPS bung adapter.</span></span> Can be sued with mild acids, light oils, water based fluids and toher materials which are <span class="a-text-bold">NOT Corrosive </span>to<span class="a-text-bold"> <span class="a-text-italic">polyethylene </span></span>and<span class="a-text-bold"><span class="a-text-italic"> PVC (DO NOT use with lacquer thinners)</span></span> Discharge tube is designed to be flexible for better control of the flow <span class="a-text-bold"><span class="a-text-italic">Suction tube </span></span>is cut at a andle to lay flat against the bottom for easier transfering Insert <span class="a-text-bold"><span class="a-text-italic">suction tube</span></span> into <span class="a-text-bold"><span class="a-text-italic">drum barrel</span></span>and screw down threaded <span class="a-text-bold"><span class="a-text-italic">bung adapter.</span></span> Position <span class="a-text-bold"><span class="a-text-italic">discharge hose</span></span> into receiveing container.<span class="a-text-bold">For siphoning, be sure level of drum barrel is higher than that of receiving container.</span> <span class="a-text-bold">Grasp top handle and pump up and down. </span>When <span class="a-text-bold"><span class="a-text-italic">discharge hose</span></span> is completely full, you may cease pumping to allow siphoning action. Siphoning will slow down and then cease as supply lowers and receiver rises. <span class="a-text-bold">To stop the flow of liquid, unscrew cap on the top of handlw counterclockwise. </span>Close cap again before next use.