6 Ways To Fix Low Water Pressure in Kitchen Sink

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After having a tasty dinner, everyone wants to quickly finish cleaning tasks in the kitchen. But it becomes frustrating to clean dishes with low water pressure. You will need to give extra time to clean dishes and also it will make you more tired.

No one wants low water pressure in the modern sink faucet but this is a common issue that everyone faces after a few years of the installation of the faucet. The kitchen sink faucet is our main helper to prepare food. It is one of the most important aspects of your kitchen.

If you are reading this article means you are facing low pressure of water in the kitchen faucet and want to know how to fix low water pressure in the kitchen sink faucet.

The best thing is there are some DIY solutions that you can try before calling a plumber. Let’s see all solutions in the detail.

fix low water pressure in kitchen sink

Why Is My Kitchen Sink Water Pressure Low?

If you have recently installed a faucet but getting low water pressure then either there is something wrong with the installation or you have chosen the wrong faucet for your kitchen. Here you can check our list of best kitchen faucets to get high water pressure.

For those faucets that are serving in your kitchen for a long time period, there may be different reasons for low water pressure. Here is the list that causes this issue.

  1. Shut-Off Valves Not Working Properly
  2. Clogged Kitchen Faucet Aerators
  3. Clogged Kitchen Faucet Cartridges
  4. The problem with Pressure Reducing Valves
  5. Damaged or Clogged Water Pipelines
  6. Low Water Pressure From the Municipal Water Supply

How To Fix Low Water Pressure in the Kitchen Sink Faucet?

In the above list, we have mentioned 6 reasons for the low water pressure problem. Now let’s discuss in detail all low water pressure problems with the solution. All these DIY solutions, so you can try them easily.

1. Shut-Off Valves Not Working Properly

faucet low pressure

As the name suggests the work of a shut-off valve is to stop the water supply to the faucet. In general, under any kitchen sink, you find a shut-off valve.

When you face low water pressure in a faucet then the first thing you need to do is check shut-off valves are fully open or not. It may be possible due to build-up water pressure may not increase even when the valve is fully opened.

How To Fix Shut Off Valve Not Working Properly?

The solution to the shut-off valve problem is simple. Turn on the valve first with the help of a wrench and check the pressure of the water.

If there is a difference between the pre and post-pressure, then there is no need to check other solutions on the list.

This valve always remains in an open position and no one touches the valve so with time residuals of minerals are build-up inside the valve so water gets low space to flow. So, it’s time to change the valve.

To change the valve, first, turn off the water supply. Open the valve with a wrench and other tools and replace it with a new valve and turn on the water supply again and check the pressure.

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2. Clogged Kitchen Faucet Aerators

low water pressure kitchen faucet but sprayer fine

When the water pressure in the faucet decreases, the aerator should be checked to whether it is working properly or not. It has small holes from which water comes out and the aerator is placed at the tip of the kitchen faucet.

Many times, municipal water’s garbage gets trapped in these holes, due to which the pressure of water is reduced. Other than waste, the reason why the water comes out with low pressure is to close its holes due to mineral residuals. The aerator may be the reason for low water pressure in the kitchen sink but nowhere else.

If there is hard water in your area, then you will face clogged aerator problems more often but don’t worry here are some best-rated hard water faucets for the kitchen which will eliminate the low water pressure problem in the kitchen faucet. A clogged aerator is the most common cause of low water pressure problems.

How To Clean Clogged Kitchen Faucet Aerators?

  • First, you need to remove the faucet aerator for this you need some tools like slip-joint pliers, a wrench. In some faucets, aerators can be removed by hand so you can try your hand, if you get succeed then no need to use any tools.
  • While using any tool cover the sink with a cloth so If a tool accidentally slips while opening the aerator, there will be no scratch marks on the sink due to the cloth.
  • If the tool on the faucet is not able to hold due to water, then put plastic tape on the aerator, which will make the wrench a strong grip on the faucet.
  • Leave a few hours of immersing it in the vinegar to open the closed holes of the aerator.
  • If you don’t have vinegar then you can use an old toothbrush, rub the toothbrush on the aerator for a few minutes, or you can use a pin and put a pin in every hole one by one this is time-consuming process but effective.

3. Clogged Kitchen Faucet Cartridges

water pressure is very low in kitchen sink only

If the aerator is not the reason for low water pressure then maybe a cartridge. Cartridge and aerator both are the main reasons for low water pressure in the kitchen sink but nowhere else.

The main work of the cartridge is to maintain the water flow of the faucet. The cartridge is connected to the handle of the faucet so whenever you move the handle to start the water flow of the faucet then the cartridge also starts working and maintains the level of water flow.

The cause of cartridge choke is garbage of minerals particles and debris. Garbage is the main reason for both aerators and cartridges not working properly. Cannot move cartridge properly due to waste. The flow of water is affected due to improper movement.

The solution to the clogged kitchen cartridge problem is explained in simple terms, due to which you can correct the pressure of water without the help of a plumber.

How To Fix Clogged Cartridge?

  • Shut off the water supply to the faucet and keep the faucet handle in the turn-on position so all the remaining water from the faucet will be wiped out.
  • Cover the sink drain with any cloth or plastic so by mistake any faucet part or screw doesn’t run down in the drain.
  • Now locate the screw and remove its cap with the help of a screwdriver.
  • With the help of Allen’s wrench remove the screw and lift up the handle of the faucet.
  • Pull out the cartridge from the handle and all the other parts of the faucet in the handle. Place all the parts in order so at the time of fitting you know which part will come first for fitting.
  • Clean the cartridge with water or you can use an old toothbrush to clean and remove minerals that build up from it.
  • Vinegar is another option to remove build-up. Keep the cartridge in it for a few hours and then clean its water, all the residuals will be wiped out.
  • Now put all the parts in their correct position and tighten the handle with the pliers and wrench. You should change the cartridge if it is worn out.

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4. Problem in Pressure Reducing Valves

This valve is used in many homes. Its function is to control the pressure of water in the faucet. In some houses, it is connected at the entrance of the main pipeline of the house so that the water pressure of all the drains of the house can be fixed simultaneously.

In some households, there is a valve under each faucet, so that the pressure of each faucet can be adjusted separately.

Someone may have tightened or loosened this valve, causing a water pressure change.

This valve looks like a bell shape, making it easy to identify. You have to rotate this valve with the help of tools so that you can set the pressure of the water according to yourself.

How To Fix Pressure Reducing Valve To Increase Water Pressure?

The solution to pressure-reducing valve problems is the easiest. You do not have to open any part.

You need a wrench. Rotate them clockwise and anti-clockwise to the valve with the help of a wrench. Check the pressure of water alternately on both sides. Tighten the valve by rotating the side water which is getting more pressure.

5. Damaged or Clogged Water Pipelines

kitchen faucet low pressure

Another reason for faucet low pressure is damage by water pipelines.

There may be a leakage in the pipeline of the house after a few years of building the house. The pipeline is in the walls and below the floor, due to which there is a small thick leakage, you will not find it.

There are two ways to detect leakage or damage in a pipeline. First, check the flooring of your house carefully, if the pipeline is leaking then the water will have to seal around that area.

If the ceiling is not seen in any other place, then you can adopt another method.

In this way, it will be fully proved whether there is any leakage problem in the pipeline of the house. For this, you will need a water meter. Turn off all the faucets in the house and take a reading with water mater once.

Now keep all the faucets closed for a few hours and take the reading again after 4-5 hours. If there is any change in the reading of the water meter, there is leakage in the waterline.

How To Fix Damaged or Clogged Water Pipelines

The solution to the damaged water pipeline problem is that you will have to change the leakage pipeline.

Because the pipeline is under flooring, therefore, if you take the help of the plumber for this work, then it will be right, or else you may spoil the flooring of the house in the matter of correcting it yourself.

6. Low Water Pressure From the Municipal Water Supply

Sometimes all the faucets and pipelines in the house are correct, yet the water pressure in the faucet is low, then the reason for this may be the municipal water supply.

How will you find that kitchen faucet low pressure due to the municipal water supply?

The best way to do this is to first check all the faucets in the house, if all the faucets are getting water from the same pressure, then ask your neighbors if the water is coming from low pressure in their homes, then the reason why municipal water supply is the reason.

How To Fix It?

This is not a permanent problem. It may be due to some technical fault that the water pressure in the municipal water supply has decreased.

Its solution is that you will have to wait for a few hours, when the pressure increases in the municipal water line, then the pressure in your household faucet will also increase. Another solution is that you can use a booster to increase water pressure in the kitchen sink faucet.

What Causes Low Water Pressure in Only One Faucet?

Chocked pipeline due to residuals of minerals is the main reason for low water pressure in only one pull-down faucet not in the whole house.

If the pipeline is working well then a faulty cartridge or aerator is another possible reason for low water pressure in the only kitchen faucet. To fix it we have shown all the solutions in this article.

How To Fix Sudden Low Water Pressure In Kitchen Sink?

How To Fix Sudden Low Water Pressure In Kitchen Sink?

Sudden low water pressure drop in the kitchen sink mostly occurs due to plumbing issues. Recently there is no plumbing work done in your house and you have added some extra faucets in the house, it increases the demand for the water and results in you getting sudden low water pressure in other faucets of the house.

To solve it, you need to increase the water supply in the house. Most people use the pressure-reducing valve to control the water flow that comes through the municipal water. You can find it at the entrance of the water line in the house.

Loosen the valve to increase the water supply in the house. An adjustable wrench will help you to loosen it. Now check the water pressure in the kitchen sink faucet, it will be ok now.

In the morning, you are cleaning dishes for the breakfast and see a sudden drop of water in the kitchen sink faucet, it mostly happens because in the morning family members get ready for office or school so most faucets in the house are busy and causes water drops in the kitchen faucet.

How To Turn Water Off Under Sink?

How To Turn Water Off Under Sink?

If you have a little bit of knowledge of plumbing, you would have known that before starting any plumbing work, you need to turn off the water supply to the faucet under the sink. This is the first essential step but sometimes people forget it and they mess up the kitchen with the water.

Nowadays in most houses, shut-off valves for the modern kitchen sink faucets are present under the sink but if you don’t find them there, you need to turn off the main shut-off valve of the house.

To turn off the shut-off valve under the sink, you need an adjustable wrench. Make grip of the wrench on the valve and turn it. Maybe it is jammed due to rust, in this situation spray penetration oil on it and leave it for a few minutes. It will make the valve loosen. Now it will easily open.

Why Low Water Pressure in The Kitchen Sink After Replacing The Water Heater?

What causes low hot water pressure in the kitchen sink? If you notice low water pressure in the kitchen sink after replacing the water heater then this is not an issue of plumbing. This is an issue with the connection between the water heater and the faucet.

Check the outlet of the water heater is fully open or not. If not then open it fully. Check the pipeline which is connected between the water heater and kitchen sink faucet. Sometimes due to the build-up of minerals pipeline gets choked and less amount of water flows in it. Changing the pipeline is the only solution to the problem.

low water pressure in kitchen sink

Reason For Low Water Pressure in Kitchen Faucet Only

There are some ways by which you can find out that only your kitchen faucet has low water pressure or all the faucets in the house have low pressure.

First, check all the faucets in the house one by one if all the faucets have the same pressure, then the problem may be in the pipeline of the municipality. To confirm this more thoroughly, you can ask your neighbor whether their pressure is coming right or not.

If the cold water in the faucet is coming from the right pressure and the hot water pressure is low then the problem is in the water heater. The faucet is perfectly correct.

Things you needed to fix low water pressure –

  • Allen wrench
  • Vinegar
  • Pliers
  • Screwdriver
  • Plastic tape
  • Old toothbrush
  • Cloth
  • Cartridge removing tool
  • Pin
  • Bucket

Tools to fix low water pressure in the kitchen sink

reasons for low water pressure in kitchen faucet

FAQ About Lower Water Pressure in Kitchen Sink Faucet

Why Low Hot Water Pressure in Kitchen Faucet Only?

Some people ask us why water comes from low pressure only in their hot water tap? Its simple answer is that there is no problem with your faucet, the problem is with the water heater, which supplies hot water to the tap. So check the water heater properly and see if the water is coming out in the right amount. Also, check the pipeline connection between the tap and the water heater.

Why Does My Sink Sprayer Have Low Pressure or No Pressure?

The main reason for low pressure in the sprayer is a blockage in the pipeline of the sprayer. Due to the minerals, the layer of mineral residuals on the body inside the pipe starts to freeze, which gets thicker over time. The layer can be removed using chemicals.

Why Low Cold-Water Pressure in The Kitchen Sink Only?

In the kitchen faucet, there are two outlets for hot and cold water and the connection for both are different. So there is a chance that hot water is coming out perfectly but cold water is facing a kitchen faucet low water pressure issue. To fix it check the supply line of cold water and clean it with drain cleaners.

How to Increase Water Pressure in The Sink?

There are two ways to increase the pressure of water in the sink, first use the booster. Water pressure increases due to a booster. If the water pressure is not get increased in all the ways mentioned above, then the booster is the best solution. Also, you check the pressure-reducing valve, maybe someone has adjusted the valve which has reduced the water pressure. You can increase the water pressure in the sink by setting it to the correct position.

Final Words

We have covered all the possible reasons for low water pressure in kitchen sink faucets and also give solutions to all the low water pressure problems. Low water pressure problem is not good for kitchen faucet and it wastes our lots of time in washing. If you have any advice or suggestions about the low water pressure problem then please share your thoughts in the comment section.

4 thoughts on “6 Ways To Fix Low Water Pressure in Kitchen Sink”

  1. I am about to purchase new home and when I did a walk through, the house has inconsistent water flow and pressure throughout. The two sinks near the hose big are perfect – excellent flow and volume, but the kitchen sink (Moen Faucet) and utility sink have poor water flow and volume. Another bathroom with a sink has dreadful volume and flow but the shower and bathtub have excellent volume and flow. In the Master Bathroom one sink has excellent pressure while the other has terrible water flow and volume. Not sure I understand what is going on here. What could have happened.

    Reply
  2. Hi Ralph,

    I am in property magnagrment for a long time. HOA single level to 22 floor high rise). Not that I’m reading plumbing sites as a rule but I do make a point of educating myself. You have one of the best sites I have ever read with a photo to each topic. Well done!

    I happen to be in my own situation w a renter next to me by a dividing wall. Now that he has chosen to use his own tools (unauthorized) to raise the water pressure, I now have continuous loud rushing water in the pipe line next to the wall (his bathroom), and wall with no sound barrier. I believe he has set the psi too high. Am I stating that correctly?
    Last question: I believe one can raise the water pressure under a bathroom or kitchen sink other than by turning the faucets under either sink itself.

    Reply

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