felicia. faucet design. February 21st , 2018.
For modern faucets, the truth is quite opposite though. The touch function is reliable and under normal conditions always works as expected. These faucets cannot be activated by pets, and they are helpful for families with children.
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 setscrew and pull off handle. Though these faucets are washerless, they do have inlet and outlet seals that may leak, or sediment may build up inside the inlets and cause leaks. After removing the escutcheon cap, lift out the cylinder and clean the neoprene seals and cylinder openings. Be sure the faucet is in the "open" position when replacing seals.
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.