Under Pressure: 10 Causes of Low Water Pressure in Your Home

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Trying to use your fixtures when you have low water pressure is like putting soil into a pot one teaspoon at a time. It’s slow and doesn’t really get the job done. More than being inconvenient, if you are experiencing low water pressure it could be a sign of a deeper issue. This is especially true if you haven’t experienced low water pressure in your home before. 


If you start to notice low water pressure, give your plumber a call so that they can check it out. Because there are so many reasons why you might be experiencing low water pressure, a plumber will best be able to identify and solve the problem.


If you are ready to schedule plumbing maintenance or service, our team at Dial One Johnson Plumbing, Cooling and Heating is ready to help. Give us a call at (972) 291-0740.

1. Water Supplier 

If you start to experience sudden low water pressure then the first thing that you should do is contact your water supplier. Your water supplier may be fixing an issue in the water supply which is causing low water pressure. If they aren’t actively fixing anything, then let them know that you are experiencing an issue. If others have also complained about low water pressure then your supplier may decide to take a look. 

2. Main Shutoff Valve

If the issue does not lie with your water supplier then you may want to check the main shutoff valve. Your main shutoff valve is probably located on the inside of your house near the front. Check any appliance closets, your garage or the laundry room. Once you have located your main shutoff valve, confirm that it’s fully open. You need to turn the valve counterclockwise until it doesn’t go any further. Once you have turned the valve, check to see if it fixed the problem.

3. Water Meter Valve

The water meter valve is what your water supplier uses to control the water intake in your home. If you recently received plumbing service and you only started to notice low water pressure afterwards, then the plumber may have accidentally turned the water meter valve. To fix this, you’ll have to contact your water supplier directly. 

4. Pressure Regulator

Most plumbing systems have a pressure regulator, but not all do. Your pressure regulator is supposed to read your water pressure and keep it at a pressure that is safe for your piping. To make sure it is reading the correct number, take a pressure gauge and attach it to your hose. Once you turn on your hose, check the pressure gauge and see if it matches your pressure regulator. A pressure regulator that is inaccurate may be decreasing your water pressure because it thinks it’s higher than it actually is. If there is a problem with your pressure regulator, then give your plumber a call. 

5. Pipes are Clogged

When clogs form deep inside your piping, they can restrict flow and cause low water pressure. It’s difficult to detect whether or not you have a clog if it’s deep within your system. If you suspect that the issue may be a clog then you will need to contact a plumber. They will be able to use a camera pipe to inspect your piping and locate the clog. Once it is located, they will use a drain snake or hydrojet to get rid of it.

6. Leaky Pipes

A leaking pipe will slow down water flow and cause low water pressure. Take a look at any exposed piping to see if the issue is coming from one of those. If it is, you can find a quick, temporary leak fix at a hardware store. However, you will still need to call a plumber to permanently fix it. If the water leak is somewhere else, then you may need to have the plumber locate it using a camera or sound equipment. They will be able to repair it for you and get your water pressure back to normal.

7. Corroded Pipes

Corrosion can cause your pipes to thin out. In especially bad cases, corrosion can cause holes. Similar to leaky pipes, corroded pipes may cause water to redirect out holes. This can result in low water pressure and even a pipe burst. Corroded pipes need to be replaced, which means you will have to call a plumber. They will be able to detect and replace the corroded pipe. 

8. Demand

In some houses, if you use multiple fixtures at once, you may not receive full water pressure. For example, if two people are showering at the same time in your household then both may receive low water pressure. While there isn’t much that you can do about this issue, ask your plumber to see if they have any solutions. If not, you may just have to work it out with the members of your household.

9. Faulty Fixtures

If you have low water pressure in some fixtures but not others then you may have faulty fixtures. Showerheads and faucets often become clogged with mineral deposits or other gunk. These kinds of issues can often be easily fixed or cleaned. All you have to do is look up how to clean the specific fixture that you may be struggling with. If you still have a problem once you’ve cleaned it, give your plumber a call so that they can bring in professional tools and equipment.

10. City Regulations

If you suddenly start experiencing low water pressure then your city may have changed its regulations. If this is the case then your water supplier will have to comply and follow all new regulations. To confirm that this is the problem, give your water supplier a call. Your plumber may be able to install a pressure booster to increase the water pressure a bit. Call your plumber to find out if this is an option for you.

Reliable Duncanville Plumbers

If you are looking for a great plumber Duncanville, TX, to fix your low water pressure, you need Dial One Johnson Plumbing, Cooling and Heating. Our team is highly skilled and ready for any plumbing issue you may have. At Dial One Johnson we make customer satisfaction our number one priority. Our Duncanville plumbers are the best out there and will always provide high quality workmanship. 


With over 50 years of experience in the industry under our belt, you can feel confident that when you hire Dial One Johnson Plumbing, Cooling and Heating you are hiring the best.


To schedule an appointment with one of our experienced plumbers, give us a call at (972) 291-0740 or contact us online. 

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