This pipeline dredge takes advantage of high pressure to remove blockage co.ukom the pipe. Four suction cups can be used in different sizes of pipelines, wash basin, sink, bathtub, floor drain, squat bowl, toilet and etc. Blocking type: suit for: hair, vegetable, accessory; Not suitable for: alkaline urine, cement, hard object. It can effectively remove hair, cloth, tea, vegetables, pipeline waste. 97/5000 Easy to use. Pull the handle about 15 to 25 times, repeat several times until the blockage is cleared. Material: ABS gun body, rubber blocked head. Gun body size: (L) x (W) 27.5 X 28cm. Weight: 850g. How to use: (1) .Install the appropriate plug according to the size of the pipe diameter (2) .Pump the hand pump about 10-20 times, until could not pump in the air to get the high pressure gas (3) .Block the pipe outlet, sealed it; Pull the trigger to release high pressure gas (you could repeat this until you dredge the line.) â—† Precautions: (1) The mouth of the outlet should be