Over time, the hose that connects the plumbing to the kitchen faucet can wear out or leak and need to be replaced. Depending on the type of mixer, there can be up to three hoses under the sink: one for cold water, one for hot water, and the third for a retractable hose. After a while, they may wear out or start leaking, in which case you can easily replace the hose yourself. This way you will not only save on plumbing services, but also on your water bills.
Part 1 of 3: Prepare your workplace
Step 1. Remove foreign objects
Remove all items from under the sink, including detergents, trash can, brushes, and other items. Then cover the bottom of the cabinet with an old towel to protect the material from water in the event of leaks in pipes, hoses, connections or other system elements.
Remove unnecessary items to keep them out of water and make it easier for you to work
Step 2. Turn off the water
This is always the first step in any plumbing work, including replacing the hose. Turn the valve to the right (clockwise) to shut off the water.
To find the valve, find the place where the hose connects to the water supply. A shut-off valve is located at the connection
Step 3. Drain the remaining water from the hose
This step will prevent water from spilling all over the floor when removing the hose. Just open all the taps on the mixer and drain off the remaining water.
- Drain the hoses and relieve any residual pressure.
- If you have closed the shut-off valve but water continues to flow from the mixer, you will need to replace the shut-off valve before disconnecting the supply hose. Check the temperature of the water and find out which valve has failed if the kitchen is supplied with hot water. Also, remember to shut off the water supply to your home before replacing the shutoff valve.
Part 2 of 3: Replace the supply hose
Step 1. Disconnect the supply hose from the water supply
The supply hose connects the kitchen faucet and the water supply. The hose can be plastic or metal (flexible or non-flexible). Also, be sure to check which hose needs to be replaced as cold and hot water are supplied through different hoses.
- Water may drip from the hose after disconnection. Place a bowl underneath to collect the water.
- Loosen the clamping nut that secures the hose to the water pipe to remove the hose. You may need an adjustable wrench.
- Turn the nut to the left (counterclockwise) to loosen the connection.
- After a few turns, the nut can be twisted by hand.
- If you are not sure which hose is supplying cold water and which is hot, take a look at the color of the vent: the cold water valve is usually blue and the hot water valve is red.
Step 2. Disconnect the hose from the mixer
Find the place where the inlet hose attaches to the faucet on the sink. Use a sink wrench to loosen the nut. If the supply hose is connected to a copper tube, hold the tube with one hand and unscrew the nut with the other to avoid damaging the tube. The nut should be turned to the left (counterclockwise).
- After a few turns, the nut can be twisted by hand.
- The old hose can then be removed.
- A special narrow key will allow you to get to a hard-to-reach place under the sink. The key handle can be rotated, so you can use it in a comfortable position.
Step 3. Buy a new hose of the same size
It is best to buy a new hose after disconnecting the old hose. Take your old hose with you to a plumbing or hardware store and buy a replacement.
- If more than one hose needs to be replaced, it is important to remember the hose connection points.
- It is not necessary to buy an identical hose, but the length, diameter and fittings must be the same.
Step 4. Dry and wrap the threads with tow or fluoroplastic tape
Use a rag to dry the threaded ends of the pipes at the connection points of the inlet hose. Then wrap the ends of the pipes with sealing tape or tow to the width of the thread.
The tape or soap tow acts as a lubricant and sealant. This will make it easier to secure the new hose and avoid leaks
Step 5. Attach the hose to the mixer
Take a new hose and connect it to the mixer at the same point where the old hose was connected. Turn the nut to the right (clockwise) by hand to tighten. Do not kink the hose!
- Tighten the nut by hand as much as possible, then turn it an additional quarter turn with the sink wrench. Do not overtighten the nut to avoid damaging the threads.
- Use the correct end of the hose, as the lock nuts are usually of different diameters.
Step 6. Connect the hose to the water supply
Attach the hose to the faucet and connect the other end to the water supply. Tighten the nut by hand (to the right) and then with an adjustable wrench.
Do not turn the nut with a wrench more than a quarter of a turn to avoid damaging the threads
Step 7. Turn on the water and check the hose
To turn on the water, turn the shut-off valve on the water supply itself to the left (counterclockwise). Then turn on the water on the mixer and check for leaks or other problems.
After switching on, you may have to wait a few seconds before water flows out of the tap. Splashes are also possible
Part 3 of 3: Replace the hose on the pull-out faucet
Step 1. Disconnect the hose from the water supply
Using an adjustable wrench, loosen the nut that secures the hose to the water supply. Turn the nut to the left (counterclockwise). After a few turns, the nut can be twisted by hand.
- Instead of a nut, another connection can be used. If there is a gray button at the connection, press the button to remove the hose.
- A hose with a collet connection can also be used. In this case, hold the ring and gently push the hose deeper into the connection to remove.
Step 2. Remove the weight from the hose
All faucets with a pull-out spout use a weight to force the hose downward under the added weight. Mark on the hose where the weight is to be attached to then reattach it. First you need to remove the weight to remove the hose.
The weight can slide on the hose or snap into place. Otherwise, unscrew all the screws holding the two halves of the weight, and then remove the part from the hose
Step 3. Remove the hose and disconnect from the mixer
Remove the weight and remove the hose from the mixer through the spout holder. Then disconnect the mixer nozzle from the hose.
Use a wrench to loosen the nut and disconnect the hose from the mixer. Then hold the nut in place and unscrew the mixer head
Step 4. Buy a new hose
Take the hose with you to the store to purchase a suitable replacement. Typically, the hose uses one of three types of connections: nut, push-button quick release, or collet (no nut or button).
If you want to buy a hose in advance, but are not sure which type you need, then you can buy a universal hose with different connections and adapters included
Step 5. Connect a new hose to the mixer
Using a clean towel or rag, wipe and dry the threads and connections on the hose and faucet. Cover the threads with sealing tape or tow to lubricate and seal the connections. Insert the hose into the faucet, then hold the nut and screw on the faucet nozzle. Turn the nut to the right (clockwise) a quarter turn to secure it in place.
- Avoid kinking the hose during replacement.
- The thread will be on the connections that are inserted into the other end.
Step 6. Attach the hose, mixer head and weight
Pass the hose through the hole in the holder. Pull the hose down all the way and secure the mixer nozzle to the holder. Install a weight on the new hose.
If the weight is in two pieces, line them up over the hose and secure with screws
Step 7. Connect the hose to the water supply
For threaded hose, line up the ends and turn the nut to the right (clockwise). Tighten the nut a quarter turn with a wrench.
- In the case of a quick disconnect hose, insert the incoming end until it clicks.
- For a hose with a collet, hold the ring in place and insert the hose into the connection.
Step 8. Turn on the water and check the hose
Open the shutoff valve, turn on the tap water and check for leaks or other problems.