The kitchen faucet with a year look, faucet switch becomes very tight, I do not know what the reason is too much smoke?

Is the faucet poor quality? But the faucet is Kohler, should not be bad. Do not know this is not a normal phenomenon, there is no way to restore the original tightness. More

Rust it on the point of oil to see

There is a period of time during the year faucet if not, may occur rusty situation, the faucet will become very heavy, with W40 (a rust agent, the supermarket has to sell) in addition to rust; if often used, then consider A faucet is broken, and the faucet is tight, and if the seal is broken, the faucet is basically replaced and should be inside. Seals are almost impossible to buy, Kohler brand good, and then buy a put on.