felicia. faucet design. February 22nd , 2018.
One of the first things to know before shopping for a faucet is your hole configuration. Most sinks come with holes drilled to receive the faucet and sometimes accessories such as a sprayer, soap dispenser, hot beverage or filtered water faucet. One hole sinks are for single-control faucets, three hole are for single-control faucets with a sprayer and/or accessories and four holes are for single-control or two-handle sinks with various accessories. If you have an under-mount or apron front sink the holes are drilled into the countertop behind the sink.
Ball-style Faucet - this washerless faucet has a single handle and is identified by the hollow metal or plastic ball inside the faucet body which controls water temperature and flow. Many have a rounded cap with knurled edges located under the faucet handle. Dripping at the faucet spout is caused by worn valve seats, springs, or a damaged ball. Leaks around the base of the faucet are caused by worn o-rings.
Faucet manufacturers make several types of replacement kits for ball-type faucets; some kits have only the springs and neoprene valve seats, while better kits also have the cam and cam washer.
Important: After making repairs to a disc faucet, it is imperative the handle in the ON position, then open the shutoff valves slowly. The ceramic discs can be cracked by the sudden release of air from the faucet. Once the water is running steadily, it is safe to close the faucet.