benjamin. 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 setscrew and pull off handle. Tighten the plastic adjusting ring inside the cap by turning it with a special flat adjusting tool-or fit tow screwdrivers into the slots and cross their blades to turn the ring. If your ball-style faucet with this type of cap is leaking from the spout, first try tightening the cap with channel pliers. Still leaking? Disassemble and replace worn/broken parts. Often you need to lift out the ball and replace the rubber seats and springs on both sides of the valve. If the faucet leaks around the spout, replace worn o-rings. Replace rotating ball only if clearly worn.
For pull-down models, the hose needs to be guided through the faucet body and spout, for touch sensitive models, there will be a battery pack that needs to be connected to the contacts.
The cleverly engineered touch sensitivity system distinguishes between "touch" and "grip". When you tap it, your hand needs to be removed from the faucet within a fraction of a second. If the hand stays on the faucet, it is identified as a "grip", and the faucet does not respond. So it is practically impossible for pets to activate it.