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If your faucet head is leaking, you can clean it by hand using a stiff brush and a vinegar solution. Then, simply unscrew the aerator. You may need to use masking tape to protect the spout. You should also avoid turning the aerator too tight, as this may bend the metal. If you have to use a hammer to unscrew it, make sure to use a counter-clockwise rotation.
 

 
Turn off the main supply valve
 
The next step in how to repair a faucet head involves turning off the water supply. This valve can be found under the sink cabinet. If your faucet has high-pressure water, you need to turn off the main supply valve before performing the repair. You can also run out any excess water from the faucet to prevent the area from getting wet while you work. It's a good idea to use a heat-proof plumber's grease to grease the seat.
 
Remove the water handle
 
A stripped faucet stem can be a sign of wear and tear. To clean it, remove the water handle and expose the cap or cam. If the valve is stripped, you can clean it by using a hammer to remove dirt. In some cases, you may need to seek the assistance of a professional. The problem may also occur because the diverter is dirty. A clean diverter will eliminate any accumulated dirt that may be causing it to stick.
 

 
Changing a leaking spray head is a simple task. Ensure that the water supply valves under the sink are turned off before you begin replacing the faucet head. Make sure you remove the old one before you install the new one. Next, you need to take out the C-clip from the old one. If you don't have one, you can purchase a new one from a retailer or online. Make sure to read the instructions carefully.
 
Easy to install
 
The spray head should match the faucet's model. Look for one that has the same number and type of holes. It should also match the general positioning of the connections on the faucet. Comparison shopping allows you greater control of which model to buy. Be aware that sprayer heads may wear out due to the mineral concentration in water. You should also make sure it's easy to install and remove. A few spray heads may be difficult to install and require professional installation.
 

 
Alternatively, you may need to replace the faucet altogether. If the faucet has a pull-out hose, you may need to remove the weight that holds it in place. This may have fallen off. This problem is also common with touchless and commercial white kitchen mixer tap. Mineral buildup is another potential cause, though this issue is more common in hard water areas. Once you have checked the hose, you can replace it with a new one.
 
Replace the aerator
 
Another common cause of low water pressure is the aerator. If you're experiencing weak water pressure, you might need to clean the aerator. To do this, unscrew the aerator and clean it with vinegar and boiling water. Then, reassemble the faucet with the diverter in place. You may have to remove the tub spout first. If the problem persists, you can try replacing the aerator.