Kitchen Faucet Leak At Base Of Handle
A customer's kitchen faucet leak was driving her crazy. It was leaking around the handle and she was ready to surrender. Kitchen faucet leaks can come from several places which makes fixing them a little more challenging.
If your faucet leaks from underneath the sink, it may be corroded and you will likely be buying a new one, or may be a water supply line in need of repair. If the faucet leaks out of the end of the spout when the handle is shut off (particularly with a single-handle faucet), you probably need a new cartridge in the faucet.
This customer's faucet was a single handled Moen and was leaking when you lifted the handle to turn it on...is was leaking around the handle base very slowly. This usually means a problem with some O-rings that are supposed to keep water leaks at bay.
To access the O-rings, you have to remove the handle. Slide a small screwdriver under the decorative cap and remove the screw. The handle will lift right off. The spout covers the O-rings, one at the top and one at the bottom. The spout assembly will lift off of the faucet body, and you will clearly see the O-rings.
You can buy an assortment of O-rings that will replace these. Match up the correct size and place them into the grooves. I like to slather them up with liquid soap to lubricate them so they won't twist when re-installing the spout assembly. You can test it once you put the handle back on.