Identify the faucet's supply line hose. The hose connects the faucet to the main water supply. It may be a plastic coiled hose or a solid metal tube. There will be separate hot and cold hoses. Disconnecting the hose will let water drip, so place a pan underneath to catch it. Remove the nut holding the hose to the faucet. You can also use a basin wrench to loosen it. Afterwards, use your free hand to grip the sprayer base and gently twist it off.
Use a basin wrench
Using a basin wrench or a wrench, loosen the lock nut on the hose. Copper tubing can twist or break the lock nut. To release it, twist it counter-clockwise. Next, unscrew the two nuts that hold the faucet's hose to the kitchen sink. The matte white kitchen faucet hose should pop out easily. The nut should be free from the faucet's supply hose.
Remove the hose
The quick connect is often located on the sprayer hose. Once you've removed the hose, disconnect the hose from the faucet. You may also need to replace the sprayer, so it's best to check this first. You should also turn the water off while working on the faucet. Once the hose is disconnected, remove the protective cap. Afterward, install the quick connect. Insert the supply pipe into the adapter and push it into place.
Pull the quick connect from the hose
Once you've loosened the hose from the faucet, you can pull the quick connect from the hose. It's important to take note of the O-ring on the quick connect to ensure it's attached securely. Lastly, turn the metal clip counter-clockwise. This will free the hose and enable you to replace the faucet. This will prevent any additional leakage. In addition, the quick connect will prevent water from getting to the faucet when you turn the hose counter-clockwise.
If you're installing a new kitchen faucet, you can remove the quick connect by unscrewing the black and white hoses on the bottom of the sink. To replace the quick connect, unthread the black connector over the white one and pull it through. Once the quick connect is detached, use an Allen wrench to loosen the valve. Alternatively, you can use a wrench to unscrew the brass hose.
The hose must be firmly connected to the water supply. Carefully unscrew the nut with a basin wrench or channel-type pliers. Tighten the nut to a snug fit, but be careful not to overtighten it. Remember that the hose diameter may vary where it connects to the faucet and to the water supply. So, it's important to remember this step to ensure the faucet is secure.
Turn off the water supply
Once you've unscrewed the nut on the hose, you can remove it from the sink and replace it with a new one. Simply turn the water supply off before removing the hose and attaching a new one. Using a pair of pliers to pull the hose out from the sink will prevent you from damaging the copper tubing in the process. Once you've removed the old hose, you can easily replace the sprayer head.