how to fix a leaking tap

{"cid":"91208920","title":"Camping 20 Litre Collapsible Jerry Can Never Leaking Foldable LDPE With Handle","imgUrl":"https:\/\/img.ismap.com\/nimg\/a3\/ee\/1679d246e46b62e7bb04534d8203-200x200-1.jpg","attrs":{"Price":"USD0.5-2.0 UNIT PC","Brand Name":"LR","Minimum Order Quantity":"100","Delivery Time":"5-15days","Place of Origin":"CHINA","Payment Terms":"T\/T, L\/C, D\/A, D\/P","Supply Ability":"100000 Piece\/Pieces per Month","Packaging Details":"standard export packing","material":"LDPE","Surface Handling":"Hot Stamping","Sealing & Handle":"Heat Seal","TEMP SCOPE\/\u00b0C":"-30~75","Capacity":"20L","Usage":"camping","Color":"Transparent","Industrial Use":"chemical, medical"}}