Oil siphon pump: easy to carry and store, very useful life or emergency helper for aquarium diesel to diesel water transfer. NOT for hazardous chemical fluids Siphon Flow Instantly: Use a manual fuel pump, it will start siphoning soon. The rubber hand pump is corrosion resistant and would prevent leaks. Note: Source container should be positioned higher than destination container Durable PVC transfer tube: 1.2m / 3.9ft outlet tube and 0. 8m / 2.6ft, with two hose clamps to secure in place, no flow will leak, gasoline resistant, prevents corrosion NOTE: Never start the siphoning process with the mouth, it’s dangerous. This gas siphon pump is not intended for salt water or harsh chemicals