The first step in fixing a faucet is to find the valve. This is usually found under the sink. It's a small valve with a handle that you can turn clockwise or counter-clockwise to shut off the water supply. Make sure that you turn the valve so it is snug. Some valves have a lever handle that you can turn perpendicular to the water line to close it.
You'll need some tools for the task. A pipe wrench and slip-joint pliers are essential tools. A small receptacle or rag to catch any water that comes out of the supply lines will help you keep a flat surface while replacing the valve.
Need a pull-out spray hose
Depending on the type of faucet you have, you may need a pull-out spray hose. To make sure that the new hose will fit, you'll want to coat it with faucet grease. Then, feed the hose through the faucet's neck and secure it with the included weight. Next, you'll want to attach the new valve springs. Make sure the springs are in place, but don't forget to secure the valve ball.
If you don't have a local shutoff valve, you'll need to turn off the water at the water main. Then, open the faucet to let the pressure and water drain. If the cartridge is stuck, you can use a small plastic tool to push it out.
Hire a licensed plumber
Changing a kitchen faucet valve is not as difficult as you may think. However, you need to be careful as it's a plumbing project, and it may be beyond your skills and experience. You'll want to hire a licensed plumber if you have any doubts.
If the faucet nuts are stuck, you may need to use a hacksaw to remove them. If you're not comfortable handling metal, you may want to call a handyman. Otherwise, you can use a putty knife or a sponge soaked in water to remove the sealant.
Before you can replace a Nivito AU valve, you'll need to disconnect the water supply lines that connect the hot and cold valves. You'll also need to remove the diverter hose from the faucet. After you've disconnected all water lines, you can disconnect the mounting hardware for the faucet. Then, you can use penetrating oil to loosen any rusted nuts or bolts.
Use a simple screw stem
The two most common types of valves are ball and cartridge valves. Compression valves are simpler to replace and often use a simple screw stem and rubber compression washer. Ball valves contain rotating steel balls that can wear out. These types are more difficult to repair and may require a professional.
If you've just installed a new faucet and the valve has started leaking, it's a good idea to replace it as soon as possible. Even a slow leak can cause a lot of damage over time. This is a good time to contact a professional plumber.
