The most common explanation is a worn o-ring.
If the faucet drips after closing, this may be due to the fact that the ring does not provide proper tightness.
Typically, water taps leak because the gaskets inside the shut-off valves—mechanisms that turn on and off the flow of water—have worn out.
Most modern faucets can be repaired yourself: it is not necessary to call a plumber or change the faucet itself.
If the tap is leaking when the tap is closed, you need to inspect the body for cracks and check the stuffing box.
The easiest way is to replace the gasket when the tap is closed and water is flowing.
To do this you need to: Unscrew the element securing the valve spindle, as well as the nut securing the gasket.
Previously, we told you how to insulate a house in cold weather.