celindion. faucet design. February 23rd , 2018.
Faucets begin to drip when washers, o-rings, or seals inside the faucet are dirty with sediment, covered with mineral deposits, or just worn-out. Fixing a faucet is fairly easy, but varies depending on the type of faucet you have (see below for specific description and instructions). Once you know your faucet design, you can properly disassemble the faucet, locate the source of the leak, and then replace the worn parts or clean dirty parts.
To disassemble unscrew the bonnet from the faucet, using slip-joint pliers. Remove the valve stem, keeping in mind this has reverse threads, so unscrew it by turning it clockwise. Older compression faucets may have corroded handles that can be difficult to remove. Most hardware stores and rental centers have a specialty tool called a Handle Puller which makes the job easier.
Uncontrolled operation is the main fear that makes people who would otherwise have chosen a touch sensitive faucet decide to have a non-sensitive one. It is easy to believe that such faucets are not suitable for families with young children or pets that stay in the kitchen.
But when there are small children, the touch function comes in particularly handy. It is easier for them to get the water they need without asking adults for help. They don′t need to reach the handle and operate it. All they need to do is to tap somewhere on the faucet. It is not likely either that they would leave the water running. It has been found that children often find it fun to tap on the faucet to turn the water off.