Leak Proof Guaranteed, Tap Comes with great fitting and bold nuts and warshers. Tested for leakage and dripping for continous 12 months. Smooth movement of tap and no dripping tested. Weight of dispenser is 0.900 grams inclusives of tap, its light weight and easy to carry and convenient to use. Lid is just kept on the dispenser its not tight it just fits to keep clean. Outside of the dispenser needs to be washed with soft sponge and liquid soap and inside can be washed with scotch brite with pitambhri powder. Inside of the tank may change color as its pure copper and copper once exposed to moisture can change color but cleaning with pitambhri powder or lemon and salt will help copper retain its color. One can use it daily as an alternative to plastic, steel or other harmful materials.