YOUNGFLY Hand Pump Siphon for Fuel Water Gas Diesel Aquarium Pool Liquid Fish Tank Transfer - 647097700354

• UPC   647097700354
• This siphon pump can quickly and easily transfer fuel, water or other liquids from one container to another. Frequently used as a hand pump in boats for fuel supply to the out-board engine. With flexible PVC hose in each side, pure copper interface, durable and oil-proof. INSTRUCTION: 1. Put one side of the pump into oil or any solution, pressing the pump, then immediately plug the other side of the hand pump with your finger. 2. Release the hand pump, waiting for it to expand to normal size while oil or solution is injected into the pump. Then move away your finger. 3. Repeat step1 and step2 for 1-3 times to eject all the air in the tube to enable automatic flow of your solution. This hand pump used the pressure difference on the two sides to realize solution transfer. Solution should be transferred【 from higher place to lower place】. The black pump should be placed under the solution. and bigger the height difference, better the use effect.