What causes the sound of a dripping tap -- and how do you stop it? Scientists have solved the riddle behind one of the most recognizable, and annoying, household sounds: the dripping tap. And crucially, they have also identified a simple solution to stop it, which most of us already have in our kitchens. Source 3a.
Usually a dripping tap can be fixed by making sure the tap is fully turned off. You will be surprised how many times a little bit is all that is needed to turn off the drip and save you money on your water bill. IF that does not solve it a simple washer replacement is usually needed. If you have a washer-less system then you will need to replace the faucet that drips.